七年级有理数计算题答案 求50道初一有理数计算题，带答案！
\u6709\u521d\u4e00\u6709\u7406\u6570\u8ba1\u7b97\u9898\uff08\u6211\u89811000\u9053\u5e26\u7b54\u6848\u5317\u5e08\u5927\u7248 \u521d\u4e00\u6570\u5b66\u6709\u7406\u6570\u8ba1\u7b97\u9898\u53ca\u7b54\u6848\u6025\u9700\uff01\uff01\uff01\uff01
\u60ac\u8d4f\u5206\uff1a0 - \u63d0\u95ee\u65f6\u95f42008-10-3 17:10
\u5e26\u7b54\u6848\uff0c\u6700\u597d\u662f\u8d1f\u6570\u4e0e\u6b63\u6570\u7684\u52a0\u51cf
\u63d0\u95ee\u8005\uff1a \u6d41\u6d6a\u513f\u8d70 - \u8bd5\u7528\u671f \u4e00\u7ea7
\u5176\u4ed6\u56de\u7b54 \u5171 3 \u6761
\u521d\u4e00\u6570\u5b66\u6709\u7406\u6570\u7684\u6df7\u5408\u8fd0\u7b97\u7ec3\u4e60
\u3010\u540c\u6b65\u8fbe\u7eb2\u7ec3\u4e60\u3011\uff08\u65f6\u95f445\u5206\u949f\uff0c\u6ee1\u5206100\u5206\uff09
1\uff0e\u8ba1\u7b97\u9898\uff1a\uff0810\u2032\u00d75=50\u2032\uff09
\uff081\uff093\uff0e28-4\uff0e76+1 - \uff1b
\uff082\uff092\uff0e75-2 -3 +1 \uff1b
\uff083\uff0942\u00f7\uff08-1 \uff09-1 \u00f7\uff08-0.125\uff09;
\uff084\uff09(-48) \u00f782-(-25) \u00f7(-6)2;
\uff085\uff09- +( )\u00d7(-2.4).
2.\u8ba1\u7b97\u9898\uff1a\uff0810\u2032\u00d75=50\u2032\uff09
\uff081\uff09-23\u00f71 \u00d7\uff08-1 \uff092\u00f7\uff081 \uff092\uff1b
\uff082\uff09-14-\uff082-0.5\uff09\u00d7 \u00d7[( )2-( )3];
\uff083\uff09-1 \u00d7[1-3\u00d7(- )2]-( )2\u00d7(-2)3\u00f7(- )3
\uff084\uff09(0.12+0.32) \u00f7 [-22+(-3)2-3 \u00d7 ];
(5)-6.24\u00d732+31.2\u00d7(-2)3+(-0.51) \u00d7624.
\u3010\u7d20\u8d28\u4f18\u5316\u8bad\u7ec3\u3011
1.\u586b\u7a7a\u9898\uff1a
(1)\u5982\u662f \uff0c\u90a3\u4e48ac 0\uff1b\u5982\u679c \uff0c\u90a3\u4e48ac 0;
(2)\u82e5 \uff0c\u5219abc= ; -a2b2c2= ;
(3)\u5df2\u77e5a\uff0cb\u4e92\u4e3a\u76f8\u53cd\u6570\uff0cc\uff0cd\u4e92\u4e3a\u5012\u6570\uff0cx\u7684\u7edd\u5bf9\u503c\u7b49\u4e8e2\uff0c\u90a3\u4e48x2-(a+b)+cdx= .
2\uff0e\u8ba1\u7b97\uff1a
\uff081\uff09-32-
\uff082\uff09{1+[ ]\u00d7(-2)4}\u00f7(- );
\uff083\uff095-3\u00d7{-2+4\u00d7[-3\u00d7(-2)2-(-4) \u00f7(-1)3]-7}.
\u3010\u751f\u6d3b\u5b9e\u9645\u8fd0\u7528\u3011
\u7532\u75281000\u5143\u4eba\u6c11\u5e01\u8d2d\u4e70\u4e86\u4e00\u624b\u80a1\u7968\uff0c\u968f\u5373\u4ed6\u5c06\u8fd9\u624b\u80a1\u7968\u8f6c\u5356\u7ed9\u4e59\uff0c\u83b7\u522910%\uff0c\u800c\u540e\u4e59\u53c8\u5c06\u8fd9\u624b\u80a1\u7968\u53cd\u5356\u7ed9\u7532\uff0c\u4f46\u4e59\u635f\u5931\u4e8610%.\u6700\u540e\u7532\u6309\u4e59\u5356\u7ed9\u7532\u7684\u4ef7\u683c\u7684\u4e5d\u6298\u5c06\u8fd9\u624b\u80a1\u7968\u5356\u7ed9\u4e86\u4e59\uff0c\u5728\u4e0a\u8ff0\u80a1\u7968\u4ea4\u6613\u4e2d\uff08 \uff09
A\uff0e\u7532\u521a\u597d\u4e8f\u76c8\u5e73\u8861\uff1b B\uff0e\u7532\u76c8\u52291\u5143\uff1b
C\uff0e\u7532\u76c8\u52299\u5143\uff1b D\uff0e\u7532\u4e8f\u672c1.1\u5143.
\u53c2\u8003\u7b54\u6848\uff1a
\u3010\u540c\u6b65\u8fbe\u7eb2\u7ec3\u4e60\u3011
1\uff0e\uff081\uff09-0.73 \uff082\uff09-1 ; \uff083\uff09-14; \uff084\uff09- ; \uff085\uff09-2.9
2\uff0e(1)-3 (2)-1 ; (3)- ; (4)1; (5)-624.
\u3010\u7d20\u8d28\u4f18\u5316\u8bad\u7ec3\u3011
1.(1)>\uff0c>; (2)24\uff0c-576; (3)2\u62166.[\u63d0\u793a\uff1a\u2235 =2 \u2234x2=4\uff0cx=\u00b12]. 2.(1)-31; (2)-8 (3)224
\u3010\u751f\u6d3b\u5b9e\u9645\u8fd0\u7528\u3011 B
\u53c2\u8003\u8d44\u6599\uff1a http://edu.jx163.com/edu2/test/attche/site327/20070124/00e04c793857072105990c.doc
\u56de\u7b54\u8005\uff1a \u6702\u00e0\u00ec\u8fd8\u9048\u54f2 - \u8bd5\u7528\u671f \u4e00\u7ea7 10-4 10:07
75\u00f7\u3014138\u00f7\uff08100-54\uff09\u3015 85\u00d7(95\uff0d1440\u00f724)
80400\uff0d(4300\uff0b870\u00f715) 240\u00d778\u00f7\uff08154-115\uff09
1437\u00d727\uff0b27\u00d7563 \u301475-\uff0812+18\uff09\u3015\u00f715
2160\u00f7\u3014\uff0883-79\uff09\u00d718\u3015 280\uff0b840\u00f724\u00d75
325\u00f713\u00d7(266\uff0d250) 85\u00d7(95\uff0d1440\u00f724)
58870\u00f7(105\uff0b20\u00d72) 1437\u00d727\uff0b27\u00d7563
81432\u00f7(13\u00d752\uff0b78) [37.85-\uff087.85+6.4\uff09] \u00d730
156\u00d7[(17.7-7.2)\u00f73] \uff08947\uff0d599\uff09\uff0b76\u00d764
36\u00d7(913\uff0d276\u00f723) [192\uff0d\uff0854\uff0b38\uff09]\u00d767
[\uff087.1-5.6\uff09\u00d70.9-1.15]\u00f72.5 81432\u00f7(13\u00d752\uff0b78)
5.4\u00f7[2.6\u00d7\uff083.7-2.9\uff09+0.62] \uff08947\uff0d599\uff09\uff0b76\u00d764 60\uff0d(9.5\uff0b28.9)]\u00f70.18 2.881\u00f70.43\uff0d0.24\u00d73.5 20\u00d7[(2.44\uff0d1.8)\u00f70.4\uff0b0.15] 28-(3.4 1.25\u00d72.4) 0.8\u00d7\u301415.5-(3.21 5.79)\u3015 \uff0831.8 3.2\u00d74\uff09\u00f75 194\uff0d64.8\u00f71.8\u00d70.9 36.72\u00f74.25\u00d79.9 3.416\u00f7\uff080.016\u00d735\uff09 0.8\u00d7[(10\uff0d6.76)\u00f71.2]
\uff08136+64\uff09\u00d7\uff0865-345\u00f723\uff09 (6.8-6.8\u00d70.55)\u00f78.5
0.12\u00d7 4.8\u00f70.12\u00d74.8 \uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
812-700\u00f7\uff089+31\u00d711\uff09 \uff083.2\u00d71.5+2.5\uff09\u00f71.6
85+14\u00d7\uff0814+208\u00f726\uff09 120-36\u00d74\u00f718+35
\uff08284+16\uff09\u00d7\uff08512-8208\u00f718\uff09 9.72\u00d71.6-18.305\u00f77
4/7\u00f7[1/3\u00d7\uff083/5-3/10\uff09] \uff084/5+1/4\uff09\u00f77/3+7/10
12.78\uff0d0\u00f7\uff08 13.4\uff0b156.6 \uff09 37.812-700\u00f7\uff089+31\u00d711\uff09 \uff08136+64\uff09\u00d7\uff0865-345\u00f723\uff09 3.2\u00d7\uff081.5+2.5\uff09\u00f71.6
85+14\u00d7\uff0814+208\u00f726\uff09 \uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
(6.8-6.8\u00d70.55)\u00f78.5 \uff08284+16\uff09\u00d7\uff08512-8208\u00f718\uff09
0.12\u00d7 4.8\u00f70.12\u00d74.8 \uff083.2\u00d71.5+2.5\uff09\u00f71.6
120-36\u00d74\u00f718+35 10.15-10.75\u00d70.4-5.7
5.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.74 347+45\u00d72-4160\u00f752
32.52-\uff086+9.728\u00f73.2\uff09\u00d72.5 87\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
[\uff087.1-5.6\uff09\u00d70.9-1.15] \u00f72.5 \uff083.2\u00d71.5+2.5\uff09\u00f71.6
5.4\u00f7[2.6\u00d7\uff083.7-2.9\uff09+0.62] 12\u00d76\u00f7\uff0812-7.2\uff09-6
3.2\u00d76+\uff081.5+2.5\uff09\u00f71.6 \uff083.2\u00d71.5+2.5\uff09\u00f71.6
5.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.74
33.02\uff0d\uff08148.4\uff0d90.85\uff09\u00f72.5
\u56de\u7b54\u8005\uff1a 754791551 - \u9b54\u6cd5\u5b66\u5f92 \u4e00\u7ea7 10-5 13:26
(\u4e00)\u8ba1\u7b97\u9898:
(1)23+(-73)
(2)(-84)+(-49)
(3)7+(-2.04)
(4)4.23+(-7.57)
(5)(-7/3)+(-7/6)
(6)9/4+(-3/2)
(7)3.75+(2.25)+5/4
(8)-3.75+(+5/4)+(-1.5)
(9)(-17/4)+(-10/3)+(+13/3)+(11/3)
(10)(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4)
(11)(+1.3)-(+17/7)
(12)(-2)-(+2/3)
(13)|(-7.2)-(-6.3)+(1.1)|
(14)|(-5/4)-(-3/4)|-|1-5/4-|-3/4|)
(15)(-2/199)*(-7/6-3/2+8/3)
(16)4a)*(-3b)*(5c)*1/6
\u8fd8\u670950\u9053\u9898\uff0c\u4e0d\u8fc7\u6ca1\u6709\u7b54\u6848
1. 3/7 \u00d7 49/9 - 4/3
2. 8/9 \u00d7 15/36 + 1/27
3. 12\u00d7 5/6 \u2013 2/9 \u00d73
4. 8\u00d7 5/4 + 1/4
5. 6\u00f7 3/8 \u2013 3/8 \u00f76
6. 4/7 \u00d7 5/9 + 3/7 \u00d7 5/9
7. 5/2 -\uff08 3/2 + 4/5 \uff09
8. 7/8 + \uff08 1/8 + 1/9 \uff09
9. 9 \u00d7 5/6 + 5/6
10. 3/4 \u00d7 8/9 - 1/3
0.12\u03c7\uff0b1.8\u00d70.9=7.2 (9\uff0d5\u03c7)\u00d70.3=1.02 6.4\u03c7-\u03c7=28+4.4
11. 7 \u00d7 5/49 + 3/14
12. 6 \u00d7\uff08 1/2 + 2/3 \uff09
13. 8 \u00d7 4/5 + 8 \u00d7 11/5
14. 31 \u00d7 5/6 \u2013 5/6
15. 9/7 - \uff08 2/7 \u2013 10/21 \uff09
16. 5/9 \u00d7 18 \u2013 14 \u00d7 2/7
17. 4/5 \u00d7 25/16 + 2/3 \u00d7 3/4
18. 14 \u00d7 8/7 \u2013 5/6 \u00d7 12/15
19. 17/32 \u2013 3/4 \u00d7 9/24
20. 3 \u00d7 2/9 + 1/3
21. 5/7 \u00d7 3/25 + 3/7
22. 3/14 \u00d7\u00d7 2/3 + 1/6
23. 1/5 \u00d7 2/3 + 5/6
24. 9/22 + 1/11 \u00f7 1/2
25. 5/3 \u00d7 11/5 + 4/3
26. 45 \u00d7 2/3 + 1/3 \u00d7 15
27. 7/19 + 12/19 \u00d7 5/6
28. 1/4 + 3/4 \u00f7 2/3
29. 8/7 \u00d7 21/16 + 1/2
30. 101 \u00d7 1/5 \u2013 1/5 \u00d7 21
31.50\uff0b160\u00f740 \uff0858+370\uff09\u00f7\uff0864-45\uff09
32.120-144\u00f718+35
33.347+45\u00d72-4160\u00f752
34\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
35.95\u00f7\uff0864-45\uff09
36.178-145\u00f75\u00d76+42 420+580-64\u00d721\u00f728
37.812-700\u00f7\uff089+31\u00d711\uff09 \uff08136+64\uff09\u00d7\uff0865-345\u00f723\uff09
38.85+14\u00d7\uff0814+208\u00f726\uff09
39.\uff08284+16\uff09\u00d7\uff08512-8208\u00f718\uff09
40.120-36\u00d74\u00f718+35
41.\uff0858+37\uff09\u00f7\uff0864-9\u00d75\uff09
42.(6.8-6.8\u00d70.55)\u00f78.5
43.0.12\u00d7 4.8\u00f70.12\u00d74.8
44.\uff083.2\u00d71.5+2.5\uff09\u00f71.6 \uff082\uff093.2\u00d7\uff081.5+2.5\uff09\u00f71.6
45.6-1.6\u00f74= 5.38+7.85-5.37=
46.7.2\u00f70.8-1.2\u00d75= 6-1.19\u00d73-0.43=
47.6.5\u00d7\uff084.8-1.2\u00d74\uff09= 0.68\u00d71.9+0.32\u00d71.9
48.10.15-10.75\u00d70.4-5.7
49.5.8\u00d7\uff083.87-0.13\uff09+4.2\u00d73.74
50.32.52-\uff086+9.728\u00f73.2\uff09\u00d72.5
51.-5+58+13+90+78-(-56)+50
52.-7*2-57/(3
53.(-7)*2/(1/3)+79/(3+6/4\uff09
54.123+456+789+98/(-4)
55.369/33-(-54-31/15.5)
56.39+{3x[42/2x(3x8)]}
57.9x8x7/5x(4+6)
58.11x22/(4+12/2)
59.94+(-60)/10
1.
a^3-2b^3+ab(2a-b)
=a^3+2a^2b-2b^3-ab^2
=a^2(a+2b)-b^2(2b+a)
=(a+2b)(a^2-b^2)
=(a+2b)(a+b)(a-b)
2.
(x^2+y^2)^2-4y(x^2+y^2)+4y^2
=(x^2+y^2-2y)^2
3.
(x^2+2x)^2+3(x^2+2x)+x^2+2x+3
=(x^2+2x)^2+4(x^2+2x)+3
=(x^2+2x+3)(x^2+2x+1)
=(x^2+2x+3)(x+1)^2
4.
(a+1)(a+2)+(2a+1)(a-2)-12
=a^2+3a+2+2a^2-3a-2-12
=3a^2-12
=3(a+2)(a-2)
5.
x^2(y+z)^2-2xy(x-z)(y+z)+y^2(x-z)^2
=[x(y+z)-y(x-z)]^2
=(xz+yz)^2
=z^2(x+y)^2
6.
3(a+2)^2+28(a+2)-20
=[3(a+2)-2][(a+2)+10]
=(3a+4)(a+12)
7.
(a+b)^2-(b-c)^2+a^2-c^2
=(a+b)^2-c^2+a^2-(b-c)^2
=(a+b+c)(a+b-c)+(a+b-c)(a-b+c)
=(a+b-c)(a+b+c+a-b+c)
=2(a+b-c)(a+c)
8.
x(x+1)(x^2+x-1)-2
=(x^2+x)(x^2+x-1)-2
=(x^2+x)^2-(x^2+x)-2
=(x^2+x-2)(x^2+x+1)
=(x+2)(x-1)(x^2+x+1)
(\u4e8c)\u586b\u7a7a\u9898:
(1)\u96f6\u51cf\u53bba\u7684\u76f8\u53cd\u6570,\u5176\u7ed3\u679c\u662f_____________; (2)\u82e5a-b>a,\u5219b\u662f_____________\u6570; (3)\u4ece-3.14\u4e2d\u51cf\u53bb-\u03c0,\u5176\u5dee\u5e94\u4e3a____________; (4)\u88ab\u51cf\u6570\u662f-12(4/5),\u5dee\u662f4.2,\u5219\u51cf\u6570\u5e94\u662f_____________; (5)\u82e5b-a<-,\u5219a,b\u7684\u5173\u7cfb\u662f___________,\u82e5a-b<0,\u5219a,b\u7684\u5173\u7cfb\u662f______________; (6)(+22/3)-( )=-7
(\u4e09)\u5224\u65ad\u9898:
(1)\u4e00\u4e2a\u6570\u51cf\u53bb\u4e00\u4e2a\u8d1f\u6570,\u5dee\u6bd4\u88ab\u51cf\u6570\u5c0f. (2)\u4e00\u4e2a\u6570\u51cf\u53bb\u4e00\u4e2a\u6b63\u6570,\u5dee\u6bd4\u88ab\u51cf\u6570\u5c0f. (3)0\u51cf\u53bb\u4efb\u4f55\u6570,\u6240\u5f97\u7684\u5dee\u603b\u7b49\u4e8e\u8fd9\u4e2a\u6570\u7684\u76f8\u53cd\u6570. (4)\u82e5X+(-Y)=Z,\u5219X=Y+Z (5)\u82e5a0
\u4e00)\u9009\u62e9\u9898:
(1)\u5df2\u77e5a,b\u662f\u4e24\u4e2a\u6709\u7406\u6570,\u5982\u679c\u5b83\u4eec\u7684\u5546a/b=0,\u90a3\u4e48( ) (A)a=0\u4e14b\u22600 (B)a=0 (C)a=0\u6216b=0 (D)a=0\u6216b\u22600 (2)\u4e0b\u5217\u7ed9\u5b9a\u56db\u7ec4\u65701\u548c1;-1\u548c-1;0\u548c0;-2/3\u548c-3/2,\u5176\u4e2d\u4e92\u4e3a\u5012\u6570\u7684\u662f( ) (A)\u53ea\u6709 (B)\u53ea\u6709 (C)\u53ea\u6709 (D)\u90fd\u662f (3)\u5982\u679ca/|b|(b\u22600)\u662f\u6b63\u6574\u6570,\u5219( ) (A)|b|\u662fa\u7684\u7ea6\u6570 (B)|b|\u662fa\u7684\u500d\u6570 (C)a\u4e0eb\u540c\u53f7 (D)a\u4e0eb\u5f02\u53f7 (4)\u5982\u679ca>b,\u90a3\u4e48\u4e00\u5b9a\u6709( ) (A)a+b>a (B)a-b>a (C)2a>ab (D)a/b>1
(\u4e8c)\u586b\u7a7a\u9898:
(1)\u5f53|a|/a=1\u65f6,a______________0;\u5f53|a|/a=-1\u65f6,a______________0;(\u586b>,0,\u5219a___________0; (11)\u82e5ab/c0,\u5219b___________0; (12)\u82e5a/b>0,b/c(-0.3)4>-106 (B)(-0.3)4>-106>(-0.2)3 (C)-106>(-0.2)3>(-0.3)4 (D)(-0.3)4>(-0.2)3>-106 (4)\u82e5a\u4e3a\u6709\u7406\u6570,\u4e14a2>a,\u5219a\u7684\u53d6\u503c\u8303\u56f4\u662f( ) (A)a1\u6216a<0 (5)\u4e0b\u9762\u7528\u79d1\u5b66\u8bb0\u6570\u6cd5\u8868\u793a106000,\u5176\u4e2d\u6b63\u786e\u7684\u662f( ) (A)1.06*105 (B)10.6*105 (C)1.06*106 (D)0.106*107 (6)\u5df2\u77e51.2363=1.888,\u5219123.63\u7b49\u4e8e( ) (A)1888 (B)18880 (C)188800 (D)1888000 (7)\u82e5a\u662f\u6709\u7406\u6570,\u4e0b\u5217\u5404\u5f0f\u603b\u80fd\u6210\u7acb\u7684\u662f( ) (A)(-a)4=a4 (B)(-a)3=A4 (C)-a4=(-a)4 (D)-a3=a3 (8)\u8ba1\u7b97:(-1)1-(-2)2-(-3)3-(-4)4\u6240\u5f97\u7ed3\u679c\u662f( ) (A)288 (B)-288 (C)-234 (D)280
(\u4e8c)\u586b\u7a7a\u9898:
(1)\u572823\u4e2d,3\u662f________,2\u662f_______,\u5e42\u662f________;\u82e5\u628a3\u770b\u4f5c\u5e42,\u5219\u5b83\u7684\u5e95\u6570\u662f________,
\u6307\u6570\u662f________; (2)\u6839\u636e\u5e42\u7684\u610f\u4e49:(-2)3\u8868\u793a________\u76f8\u4e58; (-3)2v\u8868\u793a________\u76f8\u4e58;-23\u8868\u793a________. (3)\u5e73\u65b9\u7b49\u4e8e36/49\u7684\u6709\u7406\u6570\u662f________;\u7acb\u65b9\u7b49\u4e8e-27/64\u7684\u6570\u662f________ (4)\u628a\u4e00\u4e2a\u5927\u4e8e10\u7684\u6b63\u6570\u8bb0\u6210a*10n(n\u4e3a\u6b63\u6574\u6570)\u7684\u5f62\u6210,a\u7684\u8303\u56f4\u662f________,\u8fd9\u91ccn\u6bd4\u539f\u6765\u7684\u6574
\u6570\u4f4d\u6570\u5c11_________,\u8fd9\u79cd\u8bb0\u6570\u6cd5\u79f0\u4e3a\u79d1\u5b66\u8bb0\u6570\u6cd5; (5)\u7528\u79d1\u5b66\u8bb0\u6570\u6cd5\u8bb0\u51fa\u4e0b\u9762\u5404\u6570:4000=___________;950000=________________;\u5730\u7403
\u7684\u8d28\u91cf\u7ea6\u4e3a49800...0\u514b(28\u4f4d),\u53ef\u8bb0\u4e3a________; (6)\u4e0b\u9762\u7528\u79d1\u5b66\u8bb0\u6570\u6cd5\u8bb0\u51fa\u7684\u6570,\u539f\u6765\u5404\u4e3a\u591a\u5c11 105=_____________;2*105=______________; 9.7*107=______________9.756*103=_____________ (7)\u4e0b\u5217\u5404\u6570\u5206\u522b\u662f\u51e0\u4f4d\u81ea\u7136\u6570 7*106\u662f______\u4f4d\u6570 1.1*109\u662f________\u4f4d\u6570; 3.78*107\u662f______\u4f4d\u6570 1010\u662f________\u4f4d\u6570; (8)\u82e5\u6709\u7406\u6570m 0,b0 (B)a-|b|>0 (C)a2+b3>0 (D)a0 (C)a,b\u4e92\u4e3a\u76f8\u53cd\u6570; (D)-ab (C)a
(5)\u7528\u56db\u820d\u4e94\u5165\u6cd5\u5f97\u5230\u7684\u8fd1\u4f3c\u65701.20\u6240\u8868\u793a\u7684\u51c6\u786e\u6570a\u7684\u8303\u56f4\u662f( )
(A)1.195\u2264a<1.205 (B)1.15\u2264a<1.18 (C)1.10\u2264a<1.30 (D)1.200\u2264a<1.205 (6)\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f( ) (A)\u8fd1\u4f3c\u65703.80\u7684\u7cbe\u786e\u5ea6\u4e0e\u8fd1\u4f3c\u657038\u7684\u7cbe\u786e\u5ea6\u76f8\u540c; (B)\u8fd1\u4f3c\u657038.0\u4e0e\u8fd1\u4f3c\u657038\u7684\u6709\u6548\u6570\u5b57\u4e2a\u6570\u4e00\u6837 (C)3.1416\u7cbe\u786e\u5230\u767e\u5206\u4f4d\u540e,\u6709\u4e09\u4e2a\u6709\u6548\u6570\u5b573,1,4; (D)\u628a123*102\u8bb0\u62101.23*104,\u5176\u6709\u6548\u6570\u5b57\u6709\u56db\u4e2a.
(\u4e8c)\u586b\u7a7a\u9898:
(1)\u5199\u51fa\u4e0b\u5217\u7531\u56db\u820d\u4e94\u5165\u5f97\u5230\u7684\u8fd1\u4f3c\u503c\u6570\u7684\u7cbe\u786e\u5ea6\u4e0e\u6709\u6548\u6570\u5b57: (1)\u8fd1\u4f3c\u657085\u7cbe\u786e\u5230________\u4f4d,\u6709\u6548\u6570\u5b57\u662f________; (2)\u8fd1\u4f3c\u65703\u4e07\u7cbe\u786e\u5230______\u4f4d,\u6709\u6548\u6570\u5b57\u662f________; (3)\u8fd1\u4f3c\u65705200\u5343\u7cbe\u786e\u5230________,\u6709\u6548\u6570\u5b57\u662f_________; (4)\u8fd1\u4f3c\u65700.20\u7cbe\u786e\u5230_________\u4f4d,\u6709\u6548\u6570\u5b57\u662f_____________. (2)\u8bbee=2.71828......,\u53d6\u8fd1\u4f3c\u65702.7\u662f\u7cbe\u786e\u5230__________\u4f4d,\u6709_______\u4e2a\u6709\u6548\u6570\u5b57;
\u53d6\u8fd1\u4f3c\u65702.7183\u662f\u7cbe\u786e\u5230_________\u4f4d,\u6709_______\u4e2a\u6709\u6548\u6570\u5b57. (3)\u7531\u56db\u820d\u4e94\u5165\u5f97\u5230\u03c0=3.1416,\u7cbe\u786e\u52300.001\u7684\u8fd1\u4f3c\u503c\u662f\u03c0=__________; (4)3.1416\u4fdd\u7559\u4e09\u4e2a\u6709\u6548\u6570\u5b57\u7684\u8fd1\u4f3c\u503c\u662f_____________;
(\u4e09)\u5224\u65ad\u9898:
(1)\u8fd1\u4f3c\u657025.0\u7cbe\u786e\u4ee5\u4e2a\u75ca,\u6709\u6548\u6570\u5b57\u662f2,5; (2)\u8fd1\u4f3c\u65704\u5343\u548c\u8fd1\u4f3c\u65704000\u7684\u7cbe\u786e\u7a0b\u5ea6\u4e00\u6837; (3)\u8fd1\u4f3c\u65704\u5343\u548c\u8fd1\u4f3c\u65704*10^3\u7684\u7cbe\u786e\u7a0b\u5ea6\u4e00\u6837; (4)9.949\u7cbe\u786e\u52300.01\u7684\u8fd1\u4f3c\u6570\u662f9.95.
\u7ec3\u4e60\u516b(B\u7ea7)
(\u4e00)\u7528\u56db\u820d\u4e94\u5165\u6cd5\u5bf9\u4e0b\u5217\u5404\u6570\u53d6\u8fd1\u4f3c\u503c(\u8981\u6c42\u4fdd\u7559\u4e09\u4e2a\u6709\u6548\u6570\u5b57): (1)37.27 (2)810.9 (3)0.0045078 (4)3.079
(\u4e8c)\u7528\u56db\u820d\u4e94\u5165\u6cd5\u5bf9\u4e0b\u5217\u5404\u6570\u53d6\u8fd1\u4f3c\u503c(\u8981\u6c42\u7cbe\u786e\u5230\u5343\u4f4d): (1)37890.6 (2)213612.4 (3)1906.57
9.
9x^2(x-1)^2-3(x^2-x)-56
=9x^2(x-1)^2-3x(x-1)-56
=[3x(x-1)-8][3x(x-1)+7]
=(3x^2-3x-8)(3x^2-3x+7
\u6709\u7406\u6570\u7684\u6df7\u5408\u8fd0\u7b97
\u6559\u5b66\u76ee\u6807
1\uff0e\u8fdb\u4e00\u6b65\u638c\u63e1\u6709\u7406\u6570\u7684\u8fd0\u7b97\u6cd5\u5219\u548c\u8fd0\u7b97\u5f8b\uff1b
2\uff0e\u4f7f\u5b66\u751f\u80fd\u591f\u719f\u7ec3\u5730\u6309\u6709\u7406\u6570\u8fd0\u7b97\u987a\u5e8f\u8fdb\u884c\u6df7\u5408\u8fd0\u7b97\uff1b
3\uff0e\u6ce8\u610f\u57f9\u517b\u5b66\u751f\u7684\u8fd0\u7b97\u80fd\u529b\uff0e
\u6559\u5b66\u91cd\u70b9\u548c\u96be\u70b9
\u91cd\u70b9\uff1a\u6709\u7406\u6570\u7684\u6df7\u5408\u8fd0\u7b97\uff0e
\u96be\u70b9\uff1a\u51c6\u786e\u5730\u638c\u63e1\u6709\u7406\u6570\u7684\u8fd0\u7b97\u987a\u5e8f\u548c\u8fd0\u7b97\u4e2d\u7684\u7b26\u53f7\u95ee\u9898\uff0e
\u8bfe\u5802\u6559\u5b66\u8fc7\u7a0b\u8bbe\u8ba1
\u4e00\u3001\u4ece\u5b66\u751f\u539f\u6709\u8ba4\u77e5\u7ed3\u6784\u63d0\u51fa\u95ee\u9898
1\uff0e\u8ba1\u7b97(\u4e94\u5206\u949f\u7ec3\u4e60)\uff1a
(5)-252\uff1b (6)(-2)3\uff1b(7)-7+3-6\uff1b (8)(-3)\u00d7(-8)\u00d725\uff1b
(13)(-616)\u00f7(-28)\uff1b (14)-100-27\uff1b (15)(-1)101\uff1b (16)021\uff1b
(17)(-2)4\uff1b (18)(-4)2\uff1b (19)-32\uff1b (20)-23\uff1b
(24)3.4\u00d7104\u00f7(-5)\uff0e
2\uff0e\u8bf4\u4e00\u8bf4\u6211\u4eec\u5b66\u8fc7\u7684\u6709\u7406\u6570\u7684\u8fd0\u7b97\u5f8b\uff1a
\u52a0\u6cd5\u4ea4\u6362\u5f8b\uff1aa+b=b+a\uff1b
\u52a0\u6cd5\u7ed3\u5408\u5f8b\uff1a(a+b)+c=a+(b+c)\uff1b
\u4e58\u6cd5\u4ea4\u6362\u5f8b\uff1aab=ba\uff1b
\u4e58\u6cd5\u7ed3\u5408\u5f8b\uff1a(ab)c=a(bc)\uff1b
\u4e58\u6cd5\u5206\u914d\u5f8b\uff1aa(b+c)=ab+ac.
\u4e8c\u3001\u8bb2\u6388\u65b0\u8bfe
\u524d\u9762\u6211\u4eec\u5df2\u7ecf\u5b66\u4e60\u4e86\u6709\u7406\u6570\u7684\u52a0\u3001\u51cf\u3001\u4e58\u3001\u9664\u3001\u4e58\u65b9\u7b49\u8fd0\u7b97\uff0c\u82e5\u5728\u4e00\u4e2a\u7b97\u5f0f\u91cc\uff0c\u542b\u6709\u4ee5\u4e0a\u7684\u6df7\u5408\u8fd0\u7b97\uff0c\u6309\u600e\u6837\u7684\u987a\u5e8f\u8fdb\u884c\u8fd0\u7b97\uff1f
1\uff0e\u5728\u53ea\u6709\u52a0\u51cf\u6216\u53ea\u6709\u4e58\u9664\u7684\u540c\u4e00\u7ea7\u8fd0\u7b97\u4e2d\uff0c\u6309\u7167\u5f0f\u5b50\u7684\u987a\u5e8f\u4ece\u5de6\u5411\u53f3\u4f9d\u6b21\u8fdb\u884c\uff0e
\u5ba1\u9898\uff1a(1)\u8fd0\u7b97\u987a\u5e8f\u5982\u4f55\uff1f
(2)\u7b26\u53f7\u5982\u4f55\uff1f
\u8bf4\u660e\uff1a\u542b\u6709\u5e26\u5206\u6570\u7684\u52a0\u51cf\u6cd5\uff0c\u65b9\u6cd5\u662f\u5c06\u6574\u6570\u90e8\u5206\u548c\u5206\u6570\u90e8\u5206\u76f8\u52a0\uff0c\u518d\u8ba1\u7b97\u7ed3\u679c\uff0e\u5e26\u5206\u6570\u5206\u6210\u6574\u6570\u90e8\u5206\u548c\u5206\u6570\u90e8\u5206\u65f6\u7684\u7b26\u53f7\u4e0e\u539f\u5e26\u5206\u6570\u7684\u7b26\u53f7\u76f8\u540c\uff0e
\u8bfe\u5802\u7ec3\u4e60
\u5ba1\u9898\uff1a\u8fd0\u7b97\u987a\u5e8f\u5982\u4f55\u786e\u5b9a\uff1f
\u6ce8\u610f\u7ed3\u679c\u4e2d\u7684\u8d1f\u53f7\u4e0d\u80fd\u4e22\uff0e
\u8bfe\u5802\u7ec3\u4e60
\u8ba1\u7b97\uff1a(1)-2.5\u00d7(-4.8)\u00d7(0.09)\u00f7(-0.27)\uff1b
2\uff0e\u5728\u6ca1\u6709\u62ec\u53f7\u7684\u4e0d\u540c\u7ea7\u8fd0\u7b97\u4e2d\uff0c\u5148\u7b97\u4e58\u65b9\u518d\u7b97\u4e58\u9664\uff0c\u6700\u540e\u7b97\u52a0\u51cf\uff0e
\u4f8b3 \u8ba1\u7b97\uff1a
(1)(-3)\u00d7(-5)2\uff1b (2)\u3014(-3)\u00d7(-5)\u30152\uff1b
(3)(-3)2-(-6)\uff1b (4)(-4\u00d732)-(-4\u00d73)2\uff0e
\u5ba1\u9898\uff1a\u8fd0\u7b97\u987a\u5e8f\u5982\u4f55\uff1f
\u89e3\uff1a(1)(-3)\u00d7(-5)2=(-3)\u00d725=-75\uff0e
(2)\u3014(-3)\u00d7(-5)\u30152=(15)2=225\uff0e
(3)(-3)2-(-6)=9-(-6)=9+6=15\uff0e
(4)(-4\u00d732)-(-4\u00d73)2
=(-4\u00d79)-(-12)2
=-36-144
=-180\uff0e
\u6ce8\u610f\uff1a\u641e\u6e05(1)\uff0c(2)\u7684\u8fd0\u7b97\u987a\u5e8f\uff0c(1)\u4e2d\u5148\u4e58\u65b9\uff0c\u518d\u76f8\u4e58\uff0c(2)\u4e2d\u5148\u8ba1\u7b97\u62ec\u53f7\u5185\u7684\uff0c\u7136\u540e\u518d\u4e58\u65b9\uff0e(3)\u4e2d\u5148\u4e58\u65b9\uff0c\u518d\u76f8\u51cf\uff0c(4)\u4e2d\u7684\u8fd0\u7b97\u987a\u5e8f\u8981\u5206\u6e05\uff0c\u7b2c\u4e00\u9879(-4\u00d732)\u91cc\uff0c\u5148\u4e58\u65b9\u518d\u76f8\u4e58\uff0c\u7b2c\u4e8c\u9879(-4\u00d73)2\u4e2d\uff0c\u5c0f\u62ec\u53f7\u91cc\u5148\u76f8\u4e58\uff0c\u518d\u4e58\u65b9\uff0c\u6700\u540e\u76f8\u51cf\uff0e
\u8bfe\u5802\u7ec3\u4e60
\u8ba1\u7b97\uff1a
(1)-72\uff1b (2)(-7)2\uff1b (3)-(-7)2\uff1b
(7)(-8\u00f723)-(-8\u00f72)3\uff0e
\u4f8b4 \u8ba1\u7b97
(-2)2-(-52)\u00d7(-1)5+87\u00f7(-3)\u00d7(-1)4\uff0e
\u5ba1\u9898\uff1a(1)\u5b58\u5728\u54ea\u51e0\u7ea7\u8fd0\u7b97\uff1f
(2)\u8fd0\u7b97\u987a\u5e8f\u5982\u4f55\u786e\u5b9a\uff1f
\u89e3\uff1a (-2)2-(-52)\u00d7(-1)5+87\u00f7(-3)\u00d7(-1)4
=4-(-25)\u00d7(-1)+87\u00f7(-3)\u00d71(\u5148\u4e58\u65b9)
=4-25-29(\u518d\u4e58\u9664)
=-50\uff0e(\u6700\u540e\u76f8\u52a0)
\u6ce8\u610f\uff1a(-2)2=4\uff0c-52=-25\uff0c(-1)5=-1\uff0c(-1)4=1\uff0e
\u8bfe\u5802\u7ec3\u4e60
\u8ba1\u7b97\uff1a
(1)-9+5\u00d7(-6)-(-4)2\u00f7(-8)\uff1b
(2)2\u00d7(-3)3-4\u00d7(-3)+15\uff0e
3\uff0e\u5728\u5e26\u6709\u62ec\u53f7\u7684\u8fd0\u7b97\u4e2d\uff0c\u5148\u7b97\u5c0f\u62ec\u53f7\uff0c\u518d\u7b97\u4e2d\u62ec\u53f7\uff0c\u6700\u540e\u7b97\u5927\u62ec\u53f7\uff0e
\u8bfe\u5802\u7ec3\u4e60
\u8ba1\u7b97\uff1a
\u4e09\u3001\u5c0f\u7ed3
\u6559\u5e08\u5f15\u5bfc\u5b66\u751f\u4e00\u8d77\u603b\u7ed3\u6709\u7406\u6570\u6df7\u5408\u8fd0\u7b97\u7684\u89c4\u5f8b\uff0e
1\uff0e\u5148\u4e58\u65b9\uff0c\u518d\u4e58\u9664\uff0c\u6700\u540e\u52a0\u51cf\uff1b
2\uff0e\u540c\u7ea7\u8fd0\u7b97\u4ece\u5de6\u5230\u53f3\u6309\u987a\u5e8f\u8fd0\u7b97\uff1b
3\uff0e\u82e5\u6709\u62ec\u53f7\uff0c\u5148\u5c0f\u518d\u4e2d\u6700\u540e\u5927\uff0c\u4f9d\u6b21\u8ba1\u7b97\uff0e
\u56db\u3001\u4f5c\u4e1a
1\uff0e\u8ba1\u7b97\uff1a
2\uff0e\u8ba1\u7b97\uff1a
(1)-8+4\u00f7(-2)\uff1b (2)6-(-12)\u00f7(-3)\uff1b
(3)3�6�1(-4)+(-28)\u00f77\uff1b (4)(-7)(-5)-90\u00f7(-15)\uff1b
3\uff0e\u8ba1\u7b97\uff1a
4\uff0e\u8ba1\u7b97\uff1a
(7)1\u00f7(-1)+0\u00f74-(-4)(-1)\uff1b(8)18+32\u00f7(-2)3-(-4)2\u00d75\uff0e
5*\uff0e\u8ba1\u7b97(\u9898\u4e2d\u7684\u5b57\u6bcd\u5747\u4e3a\u81ea\u7136\u6570)\uff1a
(1)(-12)2\u00f7(-4)3-2\u00d7(-1)2n-1\uff1b
(4)\u3014(-2)4+(-4)2�6�1(-1)7\u30152m�6�1(53+35)\uff0e
\u7b2c\u4e8c\u4efd
\u521d\u4e00\u6570\u5b66\u6d4b\u8bd5\uff08\u516d\uff09
\uff08\u7b2c\u4e00\u7ae0 \u6709\u7406\u6570 2001\u300110\u300118\uff09 \u547d\u9898\u4eba\uff1a\u5b59\u671d\u4ec1 \u5f97\u5206
\u4e00\u3001 \u9009\u62e9\u9898\uff1a\uff08\u6bcf\u98983\u5206\uff0c\u517130\u5206\uff09
1\uff0e|\uff0d5|\u7b49\u4e8e\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff09\uff0d5 \uff08B\uff095 \uff08C\uff09\u00b15 \uff08D\uff090.2
2\uff0e\u5728\u6570\u8f74\u4e0a\u539f\u70b9\u53ca\u539f\u70b9\u53f3\u8fb9\u7684\u70b9\u6240\u8868\u793a\u7684\u6570\u662f\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff09\u6b63\u6570 \uff08B\uff09\u8d1f\u6570 \uff08C\uff09\u975e\u6b63\u6570 \uff08D\uff09\u975e\u8d1f\u6570
3\uff0e\u7528\u4ee3\u6570\u5f0f\u8868\u793a\u201c \u3001b\u4e24\u6570\u79ef\u4e0em\u7684\u5dee\u201d\u662f\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff09 \uff08B\uff09 \uff08C\uff09 \uff08D\uff09
4\uff0e\u5012\u6570\u7b49\u4e8e\u5b83\u672c\u8eab\u7684\u6570\u6709\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff091\u4e2a \uff08B\uff092\u4e2a \uff08C\uff093\u4e2a \uff08D\uff09\u65e0\u6570\u4e2a
5\uff0e\u5728 \uff08n\u662f\u6b63\u6574\u6570\uff09\u8fd9\u516d\u6570\u4e2d\uff0c\u8d1f\u6570\u7684\u4e2a\u6570\u662f\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026( )
\uff08A\uff091\u4e2a \uff08B\uff092\u4e2a \uff08C\uff093\u4e2a \uff08D\uff094\u4e2a
6\uff0e\u82e5\u6570\u8f74\u4e0a\u7684\u70b9A\u3001B\u5206\u522b\u4e0e\u6709\u7406\u6570a\u3001b\u5bf9\u5e94\uff0c\u5219\u4e0b\u5217\u5173\u7cfb\u6b63\u786e\u7684\u662f\uff08 \uff09
\uff08A\uff09a\uff1cb \uff08B\uff09\uff0da\uff1cb \uff08C\uff09|a|\uff1c|b| \uff08D\uff09\uff0da\uff1e\uff0db
�6�1 �6�1 �6�1
7\uff0e\u82e5|a\uff0d2|=2\uff0da\uff0c\u5219\u6570a\u5728\u6570\u8f74\u4e0a\u7684\u5bf9\u5e94\u70b9\u5728
\uff08A\uff09 \u8868\u793a\u65702\u7684\u70b9\u7684\u5de6\u4fa7 \uff08B\uff09\u8868\u793a\u65702\u7684\u70b9\u7684\u53f3\u4fa7\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08C\uff09 \u8868\u793a\u65702\u7684\u70b9\u6216\u8868\u793a\u65702\u7684\u70b9\u7684\u5de6\u4fa7
\uff08D\uff09\u8868\u793a\u65702\u7684\u70b9\u6216\u8868\u793a\u65702\u7684\u70b9\u7684\u5de6\u4fa7
8\uff0e\u8ba1\u7b97 \u7684\u7ed3\u679c\u662f\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff09 \uff08B\uff09 \uff08C\uff09 \uff08D\uff09
9\uff0e\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff09 \u6709\u7406\u6570\u5c31\u662f\u6b63\u6709\u7406\u6570\u548c\u8d1f\u6709\u7406\u6570\uff08B\uff09\u6700\u5c0f\u7684\u6709\u7406\u6570\u662f0
\uff08C\uff09\u6709\u7406\u6570\u90fd\u53ef\u4ee5\u5728\u6570\u8f74\u4e0a\u627e\u5230\u8868\u793a\u5b83\u7684\u4e00\u4e2a\u70b9\uff08D\uff09\u6574\u6570\u4e0d\u80fd\u5199\u6210\u5206\u6570\u5f62\u5f0f
10\uff0e\u4e0b\u5217\u8bf4\u6cd5\u4e2d\u9519\u8bef\u7684\u662f\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff09 \u4efb\u4f55\u6b63\u6574\u6570\u90fd\u662f\u7531\u82e5\u5e72\u4e2a\u201c1\u201d\u7ec4\u6210
\uff08B\uff09 \u5728\u81ea\u7136\u6570\u96c6\u4e2d\uff0c\u603b\u53ef\u4ee5\u8fdb\u884c\u7684\u8fd0\u7b97\u662f\u52a0\u6cd5\u3001\u51cf\u6cd5\u3001\u4e58\u6cd5
\uff08C\uff09 \u4efb\u610f\u4e00\u4e2a\u81ea\u7136\u6570m\u52a0\u4e0a\u6b63\u6574\u6570n\u7b49\u4e8em\u8fdb\u884cn\u6b21\u52a01\u8fd0\u7b97
\uff08D\uff09\u5206\u6570 \u7684\u7279\u5f81\u6027\u8d28\u662f\u5b83\u4e0e\u6570m\u7684\u4e58\u79ef\u6b63\u597d\u7b49\u4e8en
\u4e8c\u3001 \u586b\u7a7a\u9898\uff1a\uff08\u6bcf\u98984\u5206\uff0c\u517132\u5206\uff09
11\uff0e\uff0d0.2\u7684\u76f8\u53cd\u6570\u662f \uff0c\u5012\u6570\u662f \u3002
12\uff0e\u51b0\u7bb1\u51b7\u85cf\u5ba4\u7684\u6e29\u5ea6\u662f3\u2103\uff0c\u51b7\u51bb\u5ba4\u7684\u6e29\u5ea6\u6bd4\u51b7\u85cf\u5ba4\u7684\u6e29\u5ea6\u4f4e15\u2103\uff0c\u5219\u51b7\u51bb\u5ba4\u6e29\u5ea6\u662f \u2103\u3002
13\uff0e\u7d27\u63a5\u5728\u5947\u6570a\u540e\u9762\u7684\u4e09\u4e2a\u5076\u6570\u662f \u3002
14\uff0e\u7edd\u5bf9\u503c\u4e0d\u5927\u4e8e4\u7684\u8d1f\u6574\u6570\u662f \u3002
15\uff0e\u8ba1\u7b97\uff1a = \u3002
16\uff0e\u82e5a\uff1c0\uff0cb\uff1e0\uff0c|a|\uff1e|b|\uff0c\u5219a+b 0\u3002\uff08\u586b\u201c\uff1e\u201d\u6216\u201c=\u201d\u6216\u201c\uff1c\u201d\u53f7\uff09
17\uff0e\u5728\u62ec\u53f7\u5185\u7684\u6a2a\u7ebf\u4e0a\u586b\u5199\u9002\u5f53\u7684\u9879\uff1a2x\uff0d(3a\uff0d4b+c)=(2x\uff0d3a)\uff0d( )\u3002
18\uff0e\u89c2\u5bdf\u4e0b\u5217\u7b97\u5f0f\uff0c\u4f60\u5c06\u53d1\u73b0\u5176\u4e2d\u7684\u89c4\u5f8b\uff1a \uff1b \uff1b \uff1b \uff1b \uff1b\u2026\u2026\u8bf7\u7528\u540c\u4e00\u4e2a\u5b57\u6bcd\u8868\u793a\u6570\uff0c\u5c06\u4e0a\u8ff0\u5f0f\u5b50\u4e2d\u7684\u89c4\u5f8b\u7528\u7b49\u5f0f\u8868\u793a\u51fa\u6765\uff1a \u3002
\u4e09\u3001 \u8ba1\u7b97\uff08\u5199\u51fa\u8ba1\u7b97\u8fc7\u7a0b\uff09\uff1a\uff08\u6bcf\u98987\u5206\uff0c\u517128\u5206\uff09
19\uff0e 20\uff0e
21\uff0e \uff08n\u4e3a\u6b63\u6574\u6570\uff09
22\uff0e
\u56db\u3001\u82e5 \u3002\uff081\uff09\u6c42a\u3001b\u7684\u503c\uff1b\uff08\u672c\u98984\u5206\uff09
\uff082\uff09\u6c42 \u7684\u503c\u3002\uff08\u672c\u98986\u5206\uff09
\u7b2c\u4e09\u4efd
\u521d\u4e00\u6570\u5b66\u6d4b\u8bd5\uff08\u516d\uff09
\uff08\u7b2c\u4e00\u7ae0 \u6709\u7406\u6570 2001\u300110\u300118\uff09 \u547d\u9898\u4eba\uff1a\u5b59\u671d\u4ec1
\u73ed\u7ea7 \u59d3\u540d \u5f97\u5206
\u4e00\u3001 \u9009\u62e9\u9898\uff1a\uff08\u6bcf\u98983\u5206\uff0c\u517130\u5206\uff09
1\uff0e|-5|\u7b49\u4e8e\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff09-5 \uff08B\uff095 \uff08C\uff09\u00b15 \uff08D\uff090.2
2\uff0e\u5728\u6570\u8f74\u4e0a\u539f\u70b9\u53ca\u539f\u70b9\u53f3\u8fb9\u7684\u70b9\u6240\u8868\u793a\u7684\u6570\u662f\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff09\u6b63\u6570 \uff08B\uff09\u8d1f\u6570 \uff08C\uff09\u975e\u6b63\u6570 \uff08D\uff09\u975e\u8d1f\u6570
3\uff0e\u7528\u4ee3\u6570\u5f0f\u8868\u793a\u201c \u3001b\u4e24\u6570\u79ef\u4e0em\u7684\u5dee\u201d\u662f\u2026\u2026\u2026\u2026\u2026\u2026\uff08 \uff09
\uff08A\uff09 \uff08B\uff09 \uff08C\uff09 \uff08D\uff09
4\uff0e\uff0d12+11\uff0d8+39=\uff08\uff0d12\uff0d8\uff09+\uff0811+39\uff09\u662f\u5e94\u7528\u4e86 \uff08 \uff09
A\u3001\u52a0\u6cd5\u4ea4\u6362\u5f8bB\u3001\u52a0\u6cd5\u7ed3\u5408\u5f8b C\u3001\u52a0\u6cd5\u4ea4\u6362\u5f8b\u548c\u7ed3\u5408\u5f8bD\u3001\u4e58\u6cd5\u5206\u914d\u5f8b
5\uff0e\u5c066\uff0d(+3)\uff0d(\uff0d7)+(\uff0d2)\u6539\u5199\u6210\u7701\u7565\u52a0\u53f7\u7684\u548c\u5e94\u662f ( )
A\u3001\uff0d6\uff0d3+7\uff0d2 B\u30016\uff0d3\uff0d7\uff0d2 C\u30016\uff0d3+7\uff0d2 D\u30016+3\uff0d7\uff0d2
6\uff0e\u82e5|x|=3\uff0c|y|=7\uff0c\u5219x\uff0dy\u7684\u503c\u662f \uff08 \uff09
A\u3001\u00b14 B\u3001\u00b110 C\u3001\uff0d4\u6216\uff0d10 D\u3001\u00b14\uff0c\u00b110
7\uff0e\u82e5a\u00d7b\uff1c0\uff0c\u5fc5\u6709 \uff08 \uff09
A\u3001a\uff1e0\uff0cb\uff1c0 B\u3001a\uff1c0\uff0cb\uff1e0 C\u3001a\u3001b\u540c\u53f7 D\u3001a\u3001b\u5f02\u53f7
8\uff0e\u5982\u679c\u4e24\u4e2a\u6709\u7406\u6570\u7684\u548c\u662f\u6b63\u6570\uff0c\u79ef\u662f\u8d1f\u6570\uff0c\u90a3\u4e48\u8fd9\u4e24\u4e2a\u6709\u7406\u6570 \uff08 \uff09
A\u3001\u90fd\u662f\u6b63\u6570 B\u3001\u7edd\u5bf9\u503c\u5927\u7684\u90a3\u4e2a\u6570\u6b63\u6570\uff0c\u53e6\u4e00\u4e2a\u662f\u8d1f\u6570
C\u3001\u90fd\u662f\u8d1f\u6570 D\u3001\u7edd\u5bf9\u503c\u5927\u7684\u90a3\u4e2a\u6570\u8d1f\u6570\uff0c\u53e6\u4e00\u4e2a\u662f\u6b63\u6570
9\uff0e\u6587\u5177\u5e97\u3001\u4e66\u5e97\u548c\u73a9\u5177\u5e97\u4f9d\u6b21\u5ea7\u843d\u5728\u4e00\u6761\u4e1c\u897f\u8d70\u5411\u7684\u5927\u8857\u4e0a\uff0c\u6587\u5177\u5e97\u5728\u4e66\u5e97\u897f\u8fb920\u7c73\u5904\uff0c\u73a9\u5177\u5e97\u4f4d\u4e8e\u4e66\u5e97\u4e1c\u8fb9100\u7c73\u5904\uff0c\u5c0f\u660e\u4ece\u4e66\u5e97\u6cbf\u8857\u5411\u4e1c\u8d70\u4e8640\u7c73\uff0c\u63a5\u7740\u53c8\u5411\u4e1c\u8d70\u4e86\uff0d60\u7c73\uff0c\u6b64\u65f6\u5c0f\u660e\u7684\u4f4d\u7f6e\u5728 \uff08 \uff09
A\u3001\u6587\u5177\u5e97 B\u3001\u73a9\u5177\u5e97 C\u3001\u6587\u5177\u5e97\u897f\u8fb940\u7c73 D\u3001\u73a9\u5177\u5e97\u4e1c\u8fb9\uff0d60\u7c73
10\uff0e\u5df2\u77e5\u6709\u7406\u6570 \u3001 \u5728\u6570\u8f74\u4e0a\u7684\u4f4d\u7f6e\u5982\u56fe �6�1 �6�1 �6�1
\u6240\u793a\uff0c\u90a3\u4e48\u5728\u2460a\uff1e0\uff0c\u2461\uff0db\uff1c0\uff0c\u2462a\uff0db\uff1e0\uff0c
\u2463a+b\uff1e0\u56db\u4e2a\u5173\u7cfb\u5f0f\u4e2d\uff0c\u6b63\u786e\u7684\u6709 \uff08 \uff09
A\u30014\u4e2a B\u30013\u4e2a C\u30012\u4e2a D\u30011\u4e2a
\u4e8c\u3001 \u5224\u65ad\u9898\uff1a\uff08\u5bf9\u7684\u753b\u201c+\u201d\uff0c\u9519\u7684\u753b\u201c\u25cb\u201d\uff0c\u6bcf\u98981\u5206\uff0c\u51716\u5206\uff09
11\uff0e0.3\u65e2\u4e0d\u662f\u6574\u6570\u53c8\u4e0d\u662f\u5206\u6570\uff0c\u56e0\u800c\u5b83\u4e5f\u4e0d\u662f\u6709\u7406\u6570\u3002 \uff08 \uff09
12\uff0e\u4e00\u4e2a\u6709\u7406\u6570\u7684\u7edd\u5bf9\u503c\u7b49\u4e8e\u8fd9\u4e2a\u6570\u7684\u76f8\u53cd\u6570\uff0c\u8fd9\u4e2a\u6570\u662f\u8d1f\u6570\u3002 \uff08 \uff09
13\uff0e\u6536\u5165\u589e\u52a05\u5143\u8bb0\u4f5c+5\u5143\uff0c\u90a3\u4e48\u652f\u51fa\u51cf\u5c115\u5143\u8bb0\u4f5c\uff0d5\u5143\u3002 \uff08 \uff09
14\uff0e\u82e5a\u662f\u6709\u7406\u6570\uff0c\u5219\uff0da\u4e00\u5b9a\u662f\u8d1f\u6570\u3002 \uff08 \uff09
15\uff0e\u96f6\u51cf\u53bb\u4e00\u4e2a\u6709\u7406\u6570\uff0c\u4ecd\u5f97\u8fd9\u4e2a\u6570\u3002 \uff08 \uff09
16\uff0e\u51e0\u4e2a\u6709\u7406\u6570\u76f8\u4e58\uff0c\u82e5\u8d1f\u56e0\u6570\u7684\u4e2a\u6570\u4e3a\u5947\u6570\u4e2a\uff0c\u5219\u79ef\u4e3a\u8d1f\u3002 \uff08 \uff09
\u4e09\u3001 \u586b\u7a7a\u9898\uff1a\uff08\u6bcf\u98983\u5206\uff0c\u517118\u5206\uff09
17\uff0e\u5728\u62ec\u53f7\u5185\u586b\u4e0a\u9002\u5f53\u7684\u9879\uff0c\u4f7f\u7b49\u5f0f\u6210\u7acb\uff1aa+b\uff0dc+d=a+b\uff0d\uff08 \uff09\u3002
18\uff0e\u6bd4\u8f83\u5927\u5c0f: \u2502\uff0d \u2502 \u2502\uff0d \u2502.(\u586b\u201c\uff1e\u201d\u6216\u201c\uff1c\u201d\u53f7)
19\uff0e\u5982\u56fe\uff0c\u6570\u8f74\u4e0a\u6807\u51fa\u7684\u70b9\u4e2d\u4efb\u610f\u76f8\u90bb\u4e24\u70b9\u95f4\u7684\u8ddd\u79bb\u90fd\u76f8\u7b49\uff0c\u5219a\u7684\u503c= \u3002
�6�1 �6�1 �6�1 �6�1 �6�1 �6�1 �6�1 �6�1 �6�1
20\uff0e\u4e00\u4e2a\u52a0\u6570\u662f0.1\uff0c\u548c\u662f\uff0d27.9\uff0c\u53e6\u4e00\u4e2a\u52a0\u6570\u662f \u3002
21\uff0e\uff0d9\uff0c+6\uff0c\uff0d3\u4e09\u6570\u7684\u548c\u6bd4\u5b83\u4eec\u7684\u7edd\u5bf9\u503c\u7684\u548c\u5c0f \u3002
22\uff0e\u7b49\u5f0f \u00d7\u3014\uff08\uff0d5\uff09+\uff08\uff0d13\uff09\u3015= \u6839\u636e\u7684\u8fd0\u7b97\u5f8b\u662f \u3002
\u56db\u3001 \u5728\u4e0b\u5217\u6a2a\u7ebf\u4e0a\uff0c\u76f4\u63a5\u586b\u5199\u7ed3\u679c\uff1a\uff08\u6bcf\u98982\u5206\uff0c\u517112\u5206\uff09
23\uff0e\uff0d2+3= \uff1b24\uff0e\uff0d27+(\uff0d51)= \uff1b 25\uff0e\uff0d18\uff0d34= \uff1b
26\uff0e\uff0d24\uff0d(\uff0d17)= \uff1b27\uff0e\uff0d14\u00d75= \uff1b 28\uff0e\uff0d18\u00d7(\uff0d2)= \u3002
\u4e94\u3001 \u8ba1\u7b97\uff08\u5199\u51fa\u8ba1\u7b97\u8fc7\u7a0b\uff09\uff1a\uff0829\u300130\u6bcf\u98986\u5206\uff0c31\u300132\u6bcf\u98987\u5206\uff0c\u517126\u5206\uff09
29\uff0e(\uff0d6)\uff0d(\uff0d7)+(\uff0d5)\uff0d(+9) 30\uff0e
31\uff0e 32\uff0e(\uff0d5)\u00d7(\uff0d3 )\uff0d15\u00d71 +\u3014 \uff0d( )\u00d724\u3015
\u516d\u3001 \u4e0b\u8868\u5217\u51fa\u4e86\u56fd\u5916\u51e0\u4e2a\u57ce\u5e02\u4e0e\u5317\u4eac\u7684\u65f6\u5dee\uff08\u5e26\u6b63\u53f7\u7684\u6570\u8868\u793a\u540c\u4e00\u65f6\u523b\u6bd4\u5317\u4eac\u65f6\u95f4\u65e9\u7684\u65f6\u6570\uff09\u3002
\u2474\u5982\u679c\u73b0\u5728\u7684\u5317\u4eac\u65f6\u95f4\u662f7\uff1a00\uff0c\u90a3\u4e48\u73b0\u5728\u7684\u7ebd\u7ea6\u65f6\u95f4\u662f\u591a\u5c11\uff1f
\u2475\u5c0f\u534e\u73b0\u5728\u60f3\u7ed9\u8fdc\u5728\u5df4\u9ece\u7684\u5916\u516c\u6253\u7535\u8bdd\uff0c\u4f60\u8ba4\u4e3a\u5408\u9002\u5417\uff1f\uff08\u6bcf\u5c0f\u98984\u5206\uff09
*\u662f\u4e58\u53f7\u3002
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y
\u6709\u7406\u6570\u7684\u52a0\u51cf\u6df7\u5408\u8fd0\u7b97
\u3010\u3010\u540c\u6b65\u8fbe\u7eb2\u7ec3\u4e60\u3011
1\uff0e\u9009\u62e9\u9898\uff1a
\uff081\uff09\u628a-2-\uff08+3\uff09-\uff08-5\uff09+\uff08-4\uff09+\uff08+3\uff09\u5199\u6210\u7701\u7565\u62ec\u53f7\u548c\u7684\u5f62\u5f0f\uff0c\u6b63\u786e\u7684\u662f\uff08 \uff09
A\uff0e-2-3-5-4+3 B\uff0e-2+3+5-4+3
C\uff0e-2-3+5-4+3 D\uff0e-2-3-5+4+3
\uff082\uff09\u8ba1\u7b97\uff08-5\uff09-\uff08+3\uff09+\uff08-9\uff09-\uff08-7\uff09+ \u6240\u5f97\u7ed3\u679c\u6b63\u786e\u7684\u662f\uff08 \uff09
A\uff0e-10 B\uff0e-9 C\uff0e8 D\uff0e-23
\uff083\uff09-7\uff0c-12\uff0c+2\u7684\u4ee3\u6570\u548c\u6bd4\u5b83\u4eec\u7684\u7edd\u5bf9\u503c\u7684\u548c\u5c0f\uff08 \uff09
A\uff0e-38 B\uff0e-4 C\uff0e4 D\uff0e38
\uff084\uff09\u82e5 +\uff08b+3\uff092=0,\u5219b%
(1) 9*27
(3) (-2)-8-14-13
(4) (-7)*(-1)/7+8
(5) (-11)*4-(-18)/18
(6) 4+(-11)-1/(-3)
(7) (-17)-6-16/(-18)
(8) 5/7+(-1)-(-8)
(9) (-1)*(-1)+15+1
(10) 3-(-5)*3/(-15)
(11) 6*(-14)-(-14)+(-13)
(12) (-15)*(-13)-(-17)-(-4)
(13) (-20)/13/(-7)+11
(14) 8+(-1)/7+(-4)
(15) (-13)-(-9)*16*(-12)
(16) (-1)+4*19+(-2)
(17) (-17)*(-9)-20+(-6)
(18) (-5)/12-(-16)*(-15)
(19) (-3)-13*(-5)*13
(20) 5+(-7)+17-10
(21) (-10)-(-16)-13*(-16)
(22) (-14)+4-19-12
(23) 5*13/14/(-10)
(24) 3*1*17/(-10)
(25) 6+(-12)+15-(-15)
(26) 15/9/13+(-7)
(27) 2/(-10)*1-(-8)
(28) 11/(-19)+(-14)-5
(29) 19-16+18/(-11)
(30) (-1)/19+(-5)+1
(31) (-5)+19/10*(-5)
(32) 11/(-17)*(-13)*12
(33) (-8)+(-10)/8*17
(34) 7-(-12)/(-1)+(-12)
(35) 12+12-19+20
(36) (-13)*(-11)*20+(-4)
(37) 17/(-2)-2*(-19)
(38) 1-12*(-16)+(-9)
(39) 13*(-14)-15/20
(40) (-15)*(-13)-6/(-9)
(41) 15*(-1)/12+7
(42) (-13)+(-16)+(-14)-(-6)
(43) 14*12*(-20)*(-13)
(44) 17-9-20+(-10)
(45) 12/(-14)+(-14)+(-2)
(46) (-15)-12/(-17)-(-3)
(47) 6-3/9/(-8)
(48) (-20)*(-15)*10*(-4)
(49) 7/(-2)*(-3)/(-14)
(50) 13/2*18*(-7)
答案：
1 243
3 -37
4 9
5 -43
6 -(20/3)
7 -(199/9)
8 54/7
9 17
10 2
11 -83
12 216
13 1021/91
14 27/7
15 -1741
16 73
17 127
18 -(2885/12)
19 842
20 5
21 214
22 -41
23 -(13/28)
24 -(51/10)
25 24
26 -(268/39)
27 39/5
28 -(372/19)
29 15/11
30 -(77/19)
31 -(29/2)
32 1716/17
33 -(117/4)
34 -17
35 25
36 2856
37 59/2
38 184
39 -(731/4)
40 587/3
41 23/4
42 -37
43 43680
44 -22
45 -(118/7)
46 -(192/17)
47 145/24
48 -12000
49 -(3/4)
50 -819
再来一些:-5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y
-5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
2.4-(-3/5)+(-3.1)+4/5
(-6/13)+(-7/13)-(-2)
3/4-(-11/6)+(-7/3)
11+(-22)-3×(-11)
(-0.1)÷1/2×(-100)
2.4-(-3/5)+(-3.1)+4/5
(-6/13)+(-7/13)-(-2)
3/4-(-11/6)+(-7/3)
11+(-22)-3×(-11)
(-0.1)÷1/2×(-100)
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y.(-8)-(-1)
45+(-30)
-1.5-(-11.5)
-1/4-(-1/2)
15-[1-(20-4)]
-40-28-(-19)+(-24)
22.54+(-4.4)+(-12.54)+4.4
(2/3-1/2)-(1/3-5/6)
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-1+2-3+4-5+6-7
-50-28+(-24)-(-22)
-19.8-(-20.3)-(+20.2)-10.8
0.25- +(-1 )-(+3 )
-1-〔1-(1-0.6÷3)〕×〔2-(-3)×(-4)〕
0÷(-4)-42-(-8)÷(-1)3
-32-(-3) 2-(-3)3+(-1)6
3×(-2)2+(-2×3)2+(-2+3)2
(-12)÷4×(-6)÷2
(-12)÷4×(-6)×2
75÷〔138÷（100-54）〕
85×(95－1440÷24)
80400－(4300＋870÷15)
240×78÷（154-115）
1437×27＋27×563
〔75-（12+18）〕÷15
2160÷〔（83-79）×18〕
280＋840÷24×5
325÷13×(266－250)
85×(95－1440÷24)
58870÷(105＋20×2)
1437×27＋27×563
81432÷(13×52＋78)
[37.85-（7.85+6.4）] ×30
156×[(17.7-7.2)÷3]
（947－599）＋76×64
36×(913－276÷23)
-(3.4 1.25×2.4)
0.8×〔15.5-(3.21 5.79)〕
（31.8 3.2×4）÷5
194－64.8÷1.8×0.9 36.72÷4.25×9.9
3.416÷（0.016×35）
0.8×[(10－6.76)÷1.2]
（136+64）×（65-345÷23）
(6.8-6.8×0.55)÷8.5
0.12× 4.8÷0.12×4.8
（58+37）÷（64-9×5）
812-700÷（9+31×11）
（3.2×1.5+2.5）÷1.6
85+14×（14+208÷26）
120-36×4÷18+35
（284+16）×（512-8208÷18）
9.72×1.6-18.305÷7
4/7÷[1/3×（3/5-3/10）]
（4/5+1/4）÷7/3+7/10
12.78－0÷（ 13.4＋156.6 ）
37.812-700÷（9+31×11）
（136+64）×（65-345÷23）
3.2×（1.5+2.5）÷1.6
85+14×（14+208÷26）
（58+37）÷（64-9×5）
(6.8-6.8×0.55)÷8.5
（284+16）×（512-8208÷18）
0.12× 4.8÷0.12×4.8
（3.2×1.5+2.5）÷1.6
120-36×4÷18+35
10.15-10.75×0.4-5.7
5.8×（3.87-0.13）
+4.2×3.74 347+45×2-4160÷52
32.52-（6+9.728÷3.2）×2.5 87（58+37）÷（64-9×5）
[（7.1-5.6）×0.9-1.15] ÷2.5 （3.2×1.5+2.5）÷1.6
5.4÷[2.6×（3.7-2.9）+0.62] 12×6÷（12-7.2）-6
3.2×6+（1.5+2.5）÷1.6 （3.2×1.5+2.5）÷1.6
5.8×（3.87-0.13）+4.2×3.74
33.02－（148.4－90.85）÷2.5
[|-98|+76+(-87)]-23[56+(-75)-(7)]-(8+4+3)
-(-89)+|-87|-23+[-75-(7)+76]-(10+39-24)
|-9.8|+(-4.6)-[8.7-(-1.3)]+(-5.4)-(-0.2)
[-(-84)+46]-|-9.1|+(+1.9)
[-(-90)+(-34)]-(+43)+(-57)+10
5+21+8/2-6-59
68/21-8-11-8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4+(-0.4)]/1/3+2
22+(-4)+(-2)+4-3
-2+8-8-1/2+8/1/8
(2/3+1/2)/(-1/12)+(-12)
2/(-2)+0/7-(-8)-(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)+(-2)
(5+3/8-8/30/(-2)-3
(-84)/2+(-3)/(-6)
1/2-(-4/15)/2/3
（-5）-（+3）+（-9）-（-7）
（-5）+（+8）-（+2）-（-3）
5-（-3 ）-（+7）-2
（-21）+（+16）-（-13）-（+7）+（-6）
2 -（- ）+（-0.5）+(+2)-(+ )-2
(-7)-(+5)+(+3)-(-9)
-(+2 )-(-1 )-(+3 )
-14 5 (-3)=-12
-12 (-7) (-5) (-6)
23.33-(+76.76)
(-6-24.3)-(-12+9.1)+(0-2.1)
6+(7-8)
(-78)+25+26+27
(-3)+(-2)+(-1)
39+28+26-125
[2/3-4-1/4+(-0.4)]+1/3+2
22+(-4)+(-2)+4-3
(-2)+7-(-16)-(-3)
(-5)-(+3)+(-9)-(-7)
(-1/4)+(-5/6)-(-1/3)+2/3-1/6
2/3+(-1/2)-(-1/3)+1/4
(-5)+(-8)-(-2)-3
(-21)+(+16)-(-13)-(+7)+(-6)
(-2/3)+(-1/3)+3/4+(-1/4)
(-0.73)+(-0.62)-(+0.75)
(-19)+(-11)-(-33)+27
(-6.4)+(-3.6)-(-12.5)+4.5
(-81)+(-19)-27+33
(-3.2)-(-6.2)+(-5.1)+(-4.9)
(-6.9)+(-3.1)+(+2.7)+(-2.1)
1）-23÷1 ×（-1 ）2÷（1 ）2；
（2）-14-（2-0.5）× ×[( )2-( )3];
（3）-1 ×[1-3×(- )2]-( )2×(-2)3÷(- )3
（4）(0.12+0.32) ÷ [-22+(-3)2-3 × ];
(5)-6.24×32+31.2×(-2)3+(-0.51) ×624.
[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)
5+21*8/2-6-59
68/21-8-11*8+61
-2/9-7/9-56
4.6-(-3/4+1.6-4-3/4)
1/2+3+5/6-7/12
[2/3-4-1/4*(-0.4)]/1/3+2
22+(-4)+(-2)+4*3
-2*8-8*1/2+8/1/8
(2/3+1/2)/(-1/12)*(-12)
(-28)/(-6+4)+(-1)
2/(-2)+0/7-(-8)*(-2)
(1/4-5/6+1/3+2/3)/1/2
18-6/(-3)*(-2)
(5+3/8*8/30/(-2)-3
(-84)/2*(-3)/(-6)
1/2*(-4/15)/2/3
-3x+2y-5x-7y
75÷〔138÷（100-54）〕 85×(95－1440÷24)
80400－(4300＋870÷15) 240×78÷（154-115）
1437×27＋27×563 〔75-（12+18）〕÷15
2160÷〔（83-79）×18〕 280＋840÷24×5
325÷13×(266－250) 85×(95－1440÷24)
58870÷(105＋20×2) 1437×27＋27×563
81432÷(13×52＋78) [37.85-（7.85+6.4）] ×30
156×[(17.7-7.2)÷3] （947－599）＋76×64
36×(913－276÷23) [192－（54＋38）]×67
[（7.1-5.6）×0.9-1.15]÷2.5 81432÷(13×52＋78)
5.4÷[2.6×（3.7-2.9）+0.62] （947－599）＋76×64 60－(9.5＋28.9)]÷0.18 2.881÷0.43－0.24×3.5 20×[(2.44－1.8)÷0.4＋0.15] 28-(3.4 1.25×2.4) 0.8×〔15.5-(3.21 5.79)〕 （31.8 3.2×4）÷5 194－64.8÷1.8×0.9 36.72÷4.25×9.9 3.416÷（0.016×35） 0.8×[(10－6.76)÷1.2]
（136+64）×（65-345÷23） (6.8-6.8×0.55)÷8.5
0.12× 4.8÷0.12×4.8 （58+37）÷（64-9×5）
812-700÷（9+31×11） （3.2×1.5+2.5）÷1.6
85+14×（14+208÷26） 120-36×4÷18+35
（284+16）×（512-8208÷18） 9.72×1.6-18.305÷7
4/7÷[1/3×（3/5-3/10）] （4/5+1/4）÷7/3+7/10
12.78－0÷（ 13.4＋156.6 ） 37.812-700÷（9+31×11） （136+64）×（65-345÷23） 3.2×（1.5+2.5）÷1.6
85+14×（14+208÷26） （58+37）÷（64-9×5）
(6.8-6.8×0.55)÷8.5 （284+16）×（512-8208÷18）
0.12× 4.8÷0.12×4.8 （3.2×1.5+2.5）÷1.6
120-36×4÷18+35 10.15-10.75×0.4-5.7
5.8×（3.87-0.13）+4.2×3.74 347+45×2-4160÷52
32.52-（6+9.728÷3.2）×2.5 87（58+37）÷（64-9×5）
[（7.1-5.6）×0.9-1.15] ÷2.5 （3.2×1.5+2.5）÷1.6
5.4÷[2.6×（3.7-2.9）+0.62] 12×6÷（12-7.2）-6
3.2×6+（1.5+2.5）÷1.6 （3.2×1.5+2.5）÷1.6
5.8×（3.87-0.13）+4.2×3.74
33.02－（148.4－90.85）÷2.5
(一)计算题:
(1)23+(-73)
(2)(-84)+(-49)
(3)7+(-2.04)
(4)4.23+(-7.57)
(5)(-7/3)+(-7/6)
(6)9/4+(-3/2)
(7)3.75+(2.25)+5/4
(8)-3.75+(+5/4)+(-1.5)
(9)(-17/4)+(-10/3)+(+13/3)+(11/3)
(10)(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4)
(11)(+1.3)-(+17/7)
(12)(-2)-(+2/3)
(13)|(-7.2)-(-6.3)+(1.1)|
(14)|(-5/4)-(-3/4)|-|1-5/4-|-3/4|)
(15)(-2/199)*(-7/6-3/2+8/3)
(16)4a)*(-3b)*(5c)*1/6
1. 3/7 × 49/9 - 4/3
2. 8/9 × 15/36 + 1/27
3. 12× 5/6 – 2/9 ×3
4. 8× 5/4 + 1/4
5. 6÷ 3/8 – 3/8 ÷6
6. 4/7 × 5/9 + 3/7 × 5/9
7. 5/2 -（ 3/2 + 4/5 ）
8. 7/8 + （ 1/8 + 1/9 ）
9. 9 × 5/6 + 5/6
10. 3/4 × 8/9 - 1/3
0.12χ＋1.8×0.9=7.2 (9－5χ)×0.3=1.02 6.4χ-χ=28+4.4
11. 7 × 5/49 + 3/14
12. 6 ×（ 1/2 + 2/3 ）
13. 8 × 4/5 + 8 × 11/5
14. 31 × 5/6 – 5/6
15. 9/7 - （ 2/7 – 10/21 ）
16. 5/9 × 18 – 14 × 2/7
17. 4/5 × 25/16 + 2/3 × 3/4
18. 14 × 8/7 – 5/6 × 12/15
19. 17/32 – 3/4 × 9/24
20. 3 × 2/9 + 1/3
21. 5/7 × 3/25 + 3/7
22. 3/14 ×× 2/3 + 1/6
23. 1/5 × 2/3 + 5/6
24. 9/22 + 1/11 ÷ 1/2
25. 5/3 × 11/5 + 4/3
26. 45 × 2/3 + 1/3 × 15
27. 7/19 + 12/19 × 5/6
28. 1/4 + 3/4 ÷ 2/3
29. 8/7 × 21/16 + 1/2
30. 101 × 1/5 – 1/5 × 21
31.50＋160÷40 （58+370）÷（64-45）
32.120-144÷18+35
33.347+45×2-4160÷52
34（58+37）÷（64-9×5）
35.95÷（64-45）
36.178-145÷5×6+42 420+580-64×21÷28
37.812-700÷（9+31×11） （136+64）×（65-345÷23）
38.85+14×（14+208÷26）
39.（284+16）×（512-8208÷18）
40.120-36×4÷18+35
41.（58+37）÷（64-9×5）
42.(6.8-6.8×0.55)÷8.5
43.0.12× 4.8÷0.12×4.8
44.（3.2×1.5+2.5）÷1.6 （2）3.2×（1.5+2.5）÷1.6
45.6-1.6÷4= 5.38+7.85-5.37=
46.7.2÷0.8-1.2×5= 6-1.19×3-0.43=
47.6.5×（4.8-1.2×4）= 0.68×1.9+0.32×1.9
48.10.15-10.75×0.4-5.7
49.5.8×（3.87-0.13）+4.2×3.74
50.32.52-（6+9.728÷3.2）×2.5
51.-5+58+13+90+78-(-56)+50
52.-7*2-57/(3
53.(-7)*2/(1/3)+79/(3+6/4）
54.123+456+789+98/(-4)
55.369/33-(-54-31/15.5)
56.39+{3x[42/2x(3x8)]}
57.9x8x7/5x(4+6)
58.11x22/(4+12/2)
59.94+(-60)/10
累死我也写不完
闲的，懒得
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