初一数学计算题带答案 初一数学计算题带答案过程
\u521d\u4e00\u4e0a\u5b66\u671f100\u9053\u8ba1\u7b97\u9898\uff08\u5e26\u8fc7\u7a0b\u3002\u5e26\u7b54\u6848\uff09\u53c2\u8003\u8d44\u6599\uff1ahttp://edu.jx163.com/edu2/test/attche/site327/20070124/00e04c793857072105990c.doc
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
\u795d\u60a8\u5b66\u4e60\u8fdb\u6b65\uff01\u6211\u7684\u624b\u90fd\u9178\u4e86\u3002
\u4e00\u3001\u8010\u5fc3\u586b\u4e00\u586b\uff0c\u4e00\u9524\u5b9a\u97f3\uff08\u6bcf\u5c0f\u98983\u5206\uff0c\u517130\u5206\uff09
1\u3001\u82e5\u592a\u5e73\u6d0b\u6700\u6df1\u5904\u4f4e\u4e8e\u6d77\u5e73\u976211034\u7c73\uff0c\u8bb0\u4f5c\uff0d11034\u7c73\uff0c\u5219\u73e0\u7a46\u6717\u739b\u5cf0\u9ad8\u51fa\u6d77\u5e73\u97628848\u7c73\uff0c\u8bb0\u4f5c\uff3f\uff3f\uff3f\uff3f\uff3f\uff3f\u3002
2\u3001\uff0b10\u5343\u7c73\u8868\u793a\u738b\u73b2\u540c\u5b66\u5411\u5357\u8d70\u4e8610\u5343\u7c73\uff0c\u90a3\u4e48\uff0d9\u5343\u7c73\u8868\u793a_______\uff1b0\u5343\u7c73\u8868\u793a\uff3f\uff3f\uff3f\uff3f\uff3f\u3002
3\u3001\u5728\u6708\u7403\u8868\u9762\u4e0a\uff0c\u767d\u5929\u9633\u5149\u5782\u76f4\u7167\u5c04\u7684\u5730\u65b9\u6e29\u5ea6\u9ad8\u8fbe127\u2103\uff0c\u591c\u665a\u6e29\u5ea6\u53ef\u964d\u5230\uff0d183\u2103\uff0c\u90a3\u4e48\uff0d183\u2103\u8868\u793a\u7684\u610f\u4e49\u4e3a\uff3f\uff3f\uff3f\uff3f\uff3f\uff3f\uff3f\u3002
4\u3001\u4e03\uff088\uff09\u73ed\u6570\u5b66\u5174\u8da3\u5c0f\u7ec4\u5728\u4e00\u6b21\u6570\u5b66\u667a\u529b\u5927\u6bd4\u62fc\u7684\u7ade\u8d5b\u4e2d\u7684\u5e73\u5747\u5206\u6570\u4e3a90\u5206\uff0c\u5f20\u7ea2\u5f97\u4e8685\u5206\uff0c\u8bb0\u4f5c\uff0d5\u5206\uff0c\u5219\u5c0f\u660e\u540c\u5b66\u884c92\u5206\uff0c\u53ef\u8bb0\u4e3a\uff3f\uff3f\uff3f\uff3f\uff0c\u674e\u806a\u5f9790\u5206\u53ef\u8bb0\u4e3a\uff3f\uff3f\uff3f\uff3f\uff0c\u7a0b\u4f73\uff0b8\u5206\uff0c\u8868\u793a\uff3f\uff3f\uff3f\uff3f\uff3f\uff3f\u3002
5\u3001\u6709\u7406\u6570\u4e2d\uff0c\u6700\u5c0f\u7684\u6b63\u6574\u6570\u662f\uff3f\uff3f\uff3f\uff3f\uff0c\u6700\u5927\u7684\u8d1f\u6574\u6570\u662f\uff3f\uff3f\uff3f\uff3f\u3002
6\u3001\u6570\u8f74\u4e0a\u8868\u793a\u6b63\u6570\u7684\u70b9\u5728\u539f\u70b9\u7684\uff3f\uff3f\uff3f\uff0c\u539f\u70b9\u5de6\u8fb9\u7684\u6570\u8868\u793a\uff3f\uff3f\uff3f\uff0c\uff3f\uff3f\uff3f\uff3f\u70b9\u8868\u793a\u96f6\u3002
7\u3001\u6570\u8f74\u4e0a\u793a\uff0d5\u7684\u70b9\u79bb\u5f00\u539f\u70b9\u7684\u8ddd\u79bb\u662f\uff3f\uff3f\uff3f\u4e2a\u5355\u4f4d\u957f\u5ea6\uff0c\u6570\u8f74\u4e0a\u79bb\u5f00\u539f\u70b96\u4e2a\u5355\u4f4d\u957f\u5ea6\u7684\u70b9\u6709\uff3f\uff3f\uff3f\uff3f\u4e2a\uff0c\u5b83\u4eec\u8868\u793a\u7684\u6570\u662f\uff3f\uff3f\uff3f\uff3f
8\u3001\u6570\u8f74\u4e0a\u8868\u793a \u7684\u70b9\u5230\u539f\u70b9\u7684\u8ddd\u79bb\u662f\uff3f\uff3f\uff3f\uff3f\uff3f
9\u3001\u57281.5\uff0d7.5\u4e4b\u95f4\u7684\u6574\u6570\u6709\uff3f\uff3f\uff3f\uff3f\uff3f\uff0c\u5728\uff0d7.5\u4e0e\uff0d1.5\u4e4b\u95f4\u7684\u6574\u6570\u6709\uff3f\uff3f\uff3f\uff3f\uff3f
10\u3001\u5df2\u77e5\u4e0b\u5217\u5404\u6570\uff1a\uff0d23\u3001\uff0d3.14\u3001 \uff0c\u5176\u4e2d\u6b63\u6574\u6570\u6709__________\uff0c\u6574\u6570\u6709______\uff0c\u8d1f\u5206\u6570\u6709______\uff0c\u5206\u6570\u6709_________\u3002
\u4e8c\u3001\u7cbe\u5fc3\u9009\u4e00\u9009\uff0c\u6167\u773c\u8bc6\u91d1\uff01\uff08\u6bcf\u5c0f\u98983\u5206\uff0c\u517130\u5206\uff09
1\u3001\u628a\u5411\u4e1c\u8fd0\u52a8\u8bb0\u4f5c\u201c+\u201d\uff0c\u5411\u897f\u8fd0\u52a8\u8bb0\u4f5c\u201c_\u201d\uff0c\u4e0b\u5217\u8bf4\u6cd5\u6b63\u786e\u7684\u662f( )
A\u3001-3\u7c73\u8868\u793a\u5411\u4e1c\u8fd0\u52a8\u4e863\u7c73 B\u3001+3\u7c73\u8868\u793a\u5411\u897f\u8fd0\u52a8\u4e863\u7c73
C\u3001\u5411\u897f\u8fd0\u52a83\u7c73\u8868\u793a\u5411\u4e1c\u8fd0\u52a8-3\u7c73 D\u3001\u5411\u897f\u8fd0\u52a83\u7c73\uff0c\u4e5f\u53ef\u8bb0\u4f5c\u5411\u897f\u8fd0\u52a8-3\u7c73\u3002
2\u3001\u4e0b\u5217\u7528\u6b63\u6570\u548c\u8d1f\u6570\u8868\u793a\u76f8\u53cd\u610f\u4e49\u7684\u91cf\uff0c\u5176\u4e2d\u6b63\u786e\u7684\u662f( )
A\u3001 \u4e00\u5929\u51cc\u6668\u7684\u6c14\u6e29\u662f-5\u2103\uff0c\u4e2d\u5348\u6bd4\u51cc\u6668\u4e0a\u53474\u2103\uff0c\u6240\u4ee5\u4e2d\u5348\u7684\u6c14\u6e29\u662f+4\u2103
B\u3001 \u5982\u679c+3.2\u7c73\u8868\u793a\u6bd4\u6d77\u5e73\u9762\u9ad83.2\u7c73\uff0c\u90a3\u4e48-9\u7c73\u8868\u793a\u6bd4\u6d77\u5e73\u9762\u4f4e5.8\u7c73
C\u3001 \u5982\u679c\u751f\u4ea7\u6210\u672c\u589e\u52a05\uff05\uff0c\u8bb0\u4f5c+5\uff05\uff0c\u90a3\u4e48-5\u8868\u793a\u751f\u4ea7\u6210\u672c\u964d\u4f4e5\uff05
D\u3001\u5982\u679c\u6536\u5165\u589e\u52a08\u5143\uff0c\u8bb0\u4f5c+8\u5143\uff0c\u90a3\u4e48-5\u8868\u793a\u652f\u51fa\u51cf\u5c115\u5143\u3002
3\u3001\u4e0b\u5217\u8bed\u53e5\u4e2d\u6b63\u786e\u7684\u662f( )
A\u3001\u96f6\u662f\u81ea\u7136\u6570 B\u3001\u96f6\u662f\u6b63\u6570 C\u3001\u96f6\u662f\u8d1f\u6570 D\u3001\u96f6\u4e0d\u662f\u6574\u6570
4\u3001\u6700\u5c0f\u7684\u6b63\u7406\u6570( )
A\u3001\u662f0 B\u3001\u662f1 C\u3001\u662f0.00001 D\u3001\u4e0d\u5b58\u5728
5\u3001\u4e0b\u5217\u8bf4\u6cd5\u4e2d\uff0c\u5176\u4e2d\u4e0d\u6b63\u786e\u7684\u662f( )
A\u30010\u662f\u6574\u6570 B\u3001\u8d1f\u5206\u6570\u4e00\u5b9a\u662f\u6709\u7406\u6570 C\u3001\u4e00\u4e2a\u6570\u4e0d\u662f\u6b63\u6570\uff0c\u5c31\u4e00\u5b9a\u662f\u8d1f\u6570
D\u30010 \u662f\u6709\u7406\u6570
6\u3001\u6b63\u6574\u6570\u96c6\u5408\u4e0e\u8d1f\u6574\u6570\u96c6\u5408\u5408\u5e76\u5728\u4e00\u8d77\u6784\u6210\u7684\u96c6\u5408\u662f( )
A\u3001\u6574\u6570\u96c6\u5408 B\u3001\u6709\u7406\u6570\u96c6\u5408 C\u3001\u81ea\u7136\u6570\u96c6\u5408 D\u3001\u4ee5\u4e0a\u8bf4\u6cd5\u90fd\u4e0d\u5bf9
7\u3001\u4e0b\u5217\u8bf4\u6cd5\u4e2d\u6b63\u786e\u7684\u6709( )
\u2460 0\u662f\u53d6\u5c0f\u7684\u81ea\u7136\u6570\uff1b\u24610\u662f\u6700\u5c0f\u7684\u6b63\u6570\uff1b\u24620\u662f\u6700\u5c0f\u7684\u975e\u8d1f\u6570\uff1b\u24630\u65e2\u4e0d\u662f\u5947\u6570\uff0c\u4e5f\u4e0d\u662f\u5076\u6570\uff1b\u24640\u8868\u793a\u6ca1\u6709\u6e29\u5ea6\u3002
A\u30011\u4e2a B\u30012\u4e2a C\u30013\u4e2a D\u30014\u4e2a8\u3001\u82e5\u5b57\u6bcd \u8868\u793a\u4efb\u610f\u4e00\u4e2a\u6570\uff0c\u5219\u5b83\u8868\u793a\u7684\u6570\u4e00\u5b9a\u662f\uff08\u3000\u3000\u3000\u3000\uff09
A\u3001\u6b63\u6570\u3000\u3000\u3000\u3000B\u3001\u8d1f\u6570\u3000\u3000\u3000\u3000\u3000C\u30010\u3000\u3000\u3000\u3000\u3000D\u3001\u4ee5\u4e0a\u60c5\u51b5\u90fd\u6709\u53ef\u80fd
9\u3001\u4e00\u8f86\u6c7d\u8f66\u5411\u5357\u884c\u9a765\u5343\u7c73\uff0c\u518d\u5411\u5357\u884c\u9a76\uff0d5\u5343\u7c73\uff0c\u7ed3\u679c\u662f\uff08\u3000\u3000\u3000\u3000\uff09
A\u3001\u5411\u5357\u884c\u9a7610\u5343\u7c73\u3000\u3000\u3000\u3000\u3000\u3000\u3000B\u3001\u5411\u5317\u884c\u9a765\u5343\u7c73
C\u3001\u56de\u5230\u539f\u5730\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000D\u3001\u5411\u5317\u884c\u9a7610\u5343\u7c73
10\u3001\u4e0b\u5217\u8bf4\u6cd5\u9519\u8bef\u7684\u662f\uff08\u3000\u3000\u3000\u3000\uff09
A\u3001 \u6709\u7406\u6570\u662f\u6307\u6574\u6570\u3001\u5206\u6570\u3001\u6b63\u6709\u7406\u6570\u3001\u96f6\u3001\u8d1f\u6709\u7406\u6570\u8fd9\u4e94\u7c7b\u6570
B\u3001 \u4e00\u4e2a\u6709\u7406\u4e0d\u662f\u6574\u6570\u5c31\u662f\u5206\u6570
C\u3001 \u6b63\u6709\u7406\u6570\u5206\u4e3a\u6b63\u6574\u6570\u548c\u6b63\u5206\u6570
D\u3001\u8d1f\u6574\u6570\u3001\u8d1f\u5206\u6570\u7edf\u79f0\u4e3a\u8d1f\u6709\u7406\u6570
\u4e09\u3001\u7528\u5fc3\u505a\u4e00\u505a\uff0c\u9a6c\u5230\u6210\u529f\uff01\uff08\u517140\u5206\uff09
1\u3001\uff086\u5206\uff09\u628a\u4e0b\u5217\u5404\u6570\u586b\u5728\u76f8\u5e94\u7684\u96c6\u5408\u5185\uff1a
\uff0d23,0.25\uff0c \uff0c\uff0d5.18\uff0c18\uff0c-38\uff0c10\uff0c\uff0b7\uff0c0\uff0c+12
\u6b63\u6570\u96c6\u5408\uff1a{ \u2026\u2026\u2026}
\u6574\u6570\u96c6\u5408\uff1a{ \u2026\u2026\u2026}
\u5206\u6570\u96c6\u5408\uff1a{ \u2026\u2026\u2026}
2\u3001\uff086\u5206\uff09\u5982\u56fe\u6240\u793a\u7684A\u3001B\u3001C\u8868\u793a\u4e09\u4e2a\u6570\u96c6\uff0c\u6bcf\u4e2a\u6570\u96c6\u4e2d\u6240\u5305\u542b\u7684\u6570\u90fd\u5199\u5728\u5404\u81ea\u7684\u5927\u62ec\u53f7\u5185\u4e2d\uff0c\u8bf7\u628a\u8fd9\u4e9b\u6570\u586b\u5728\u96c6\u5408\u5708\u5185\u7684\u76f8\u5e94\u4f4d\u7f6e\u3002
A\uff1d{\uff0d2\uff0c\uff0d3\uff0c\uff0d8,\u30006\uff0c7 \u2026\u2026\u2026}
B\uff1d{\uff0d3\uff0c\uff0d5,\u30001\uff0c2,\u30006 \u2026\u2026\u2026}
C\uff1d{\uff0d1\uff0c\uff0d3\uff0c\uff0d8,\u30002\uff0c5\u2026\u2026\u2026}
3\u3001\uff087\u5206\uff09\u6570\u5b66\u9b54\u672f
\u5982\u56fe\u6240\u793a\uff0c\u6570\u8f74\u4e0a\u7684\u70b9A\u3001B\u3001C\u3001D\u5206\u522b\u8868\u793a \u8bf7\u56de\u7b54\u4e0b\u5217\u95ee\u9898\uff1a
\uff081\uff09\u5728\u6570\u8f74\u4e0a\u63cf\u51faA\u3001B\u3001C\u3001D\u56db\u4e2a\u70b9
\uff082\uff09B\u3001C\u4e24\u70b9\u95f4\u7684\u8ddd\u79bb\u662f\u591a\u5c11\uff1fA\u3001D\u4e24\u70b9\u95f4\u7684\u8ddd\u79bb\u662f\u591a\u5c11\uff1f
\uff083\uff09\u73b0\u5728\u628a\u6570\u8f74\u7684\u539f\u70b9\u53d6\u5728\u70b9B\u5904\uff0c\u5176\u4f59\u90fd\u4e0d\u53d8\uff0c\u90a3\u4e48\u70b9A\u3001B\u3001C\u3001D\u3001\u5206\u522b\u8868\u793a\u4ec0\u4e48\u6570\uff1f
4\u3001\uff087\u5206\uff09\u67d0\u6821\u5bf9\u4e03\u5e74\u7ea7\u7537\u751f\u8fdb\u884c\u4fef\u5367\u6491\u6d4b\u8bd5\uff0c\u4ee5\u80fd\u505a7\u4e2a\u4e3a\u6807\u51c6\uff0c\u8d85\u8fc7\u7684\u6b21\u6570\u7528\u6b63\u6570\u8868\u793a\uff0c\u4e0d\u8db3\u7684\u6b21\u6570\u7528\u8d1f\u6570\u8868\u793a\uff0c\u5176\u4e2d8\u540d\u7537\u751f\u7684\u6210\u7ee9\u5982\u4e0b\u8868\uff1a
2 \uff0d1 0 3 \uff0d2 \uff0d3 1 0
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......懒的跟你出,分太少.40道大哥
2x+17=35
3x-64=11
12+8x=52
0.8x-4.2=2.2
2x+5=10
3x-15=75
4x+4o=320
3x+77=122
5x-1.6=0.6
6x-4=20
10x-0.6=2.4
500-12x=140
1) 66x+17y=3967
25x+y=1200
答案：x=48 y=47
(2) 18x+23y=2303
74x-y=1998
答案：x=27 y=79
(3) 44x+90y=7796
44x+y=3476
答案：x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案：x=98 y=51
(5) 67x+54y=8546
71x-y=5680
答案：x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案：x=75 y=48
(7) 47x-40y=853
34x-y=2006
答案：x=59 y=48
(8) 19x-32y=-1786
75x+y=4950
答案：x=66 y=95
(9) 97x+24y=7202
58x-y=2900
答案：x=50 y=98
(10) 42x+85y=6362
63x-y=1638
答案：x=26 y=62
(11) 85x-92y=-2518
27x-y=486
答案：x=18 y=44
(12) 79x+40y=2419
56x-y=1176
答案：x=21 y=19
(13) 80x-87y=2156
22x-y=880
答案：x=40 y=12
(14) 32x+62y=5134
57x+y=2850
答案：x=50 y=57
(15) 83x-49y=82
59x+y=2183
答案：x=37 y=61
(16) 91x+70y=5845
95x-y=4275
答案：x=45 y=25
(17) 29x+44y=5281
88x-y=3608
答案：x=41 y=93
(18) 25x-95y=-4355
40x-y=2000
答案：x=50 y=59
(19) 54x+68y=3284
78x+y=1404
答案：x=18 y=34
(20) 70x+13y=3520
52x+y=2132
答案：x=41 y=50
(21) 48x-54y=-3186
24x+y=1080
答案：x=45 y=99
(22) 36x+77y=7619
47x-y=799
答案：x=17 y=91
(23) 13x-42y=-2717
31x-y=1333
答案：x=43 y=78
(24) 28x+28y=3332
52x-y=4628
答案：x=89 y=30
(25) 62x-98y=-2564
46x-y=2024
答案：x=44 y=54
(26) 79x-76y=-4388
26x-y=832
答案：x=32 y=91
(27) 63x-40y=-821
42x-y=546
答案：x=13 y=41
(28) 69x-96y=-1209
42x+y=3822
答案：x=91 y=78
(29) 85x+67y=7338
11x+y=308
答案：x=28 y=74
(30) 78x+74y=12928
14x+y=1218
答案：x=87 y=83
(31) 39x+42y=5331
59x-y=5841
答案：x=99 y=35
(32) 29x+18y=1916
58x+y=2320
答案：x=40 y=42
(33) 40x+31y=6043
45x-y=3555
答案：x=79 y=93
(34) 47x+50y=8598
45x+y=3780
答案：x=84 y=93
(35) 45x-30y=-1455
29x-y=725
答案：x=25 y=86
(36) 11x-43y=-1361
47x+y=799
答案：x=17 y=36
(37) 33x+59y=3254
94x+y=1034
答案：x=11 y=49
(38) 89x-74y=-2735
68x+y=1020
答案：x=15 y=55
(39) 94x+71y=7517
78x+y=3822
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) 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
绛旓細绛旀:x=18 y=44 (12) 79x+40y=2419 56x-y=1176 绛旀:x=21 y=19 (13) 80x-87y=2156 22x-y=880 绛旀:x=40 y=12 (14) 32x+62y=5134 57x+y=2850 绛旀:x=50 y=57 鍒濅竴50閬撴暟瀛﹁绠楅+绛旀 鍒濅竴鏁板璁＄畻棰澶у叏鍙婄瓟妗銆愬悓姝ヨ揪绾茬粌涔犮 1.閫夋嫨棰: (1)鎶-2-(+3)-(-5)+(-4)+(+...
绛旓細绛旀锛歺=98 y=51 (5) 67x+54y=8546 71x-y=5680 绛旀锛歺=80 y=59 (6) 42x-95y=-1410 21x-y=1575 绛旀锛歺=75 y=48 (7) 47x-40y=853 34x-y=2006 绛旀锛歺=59 y=48 (8) 19x-32y=-1786 75x+y=4950 绛旀锛歺=66 y=95 (9) 97x+24y=7202 58x-y=2900 绛旀锛歺=50...
绛旓細绗竴棰樺簲璇ユ槸+1/4鍚 =(x+1/2)^2-y^2=(x+y+1/2)(x-y+1/2) 2. (x+y-2)^2 姹傚悇绉鍒濅竴鏁板璁＄畻棰150棰!甯︾瓟妗! 1.25脳(8+10) =1.25脳8+1.25脳10 =10+12.5=22.5 9123-(123+8.8) =9123-123-8.8 =9000-8.8 =8991.2 1.24脳8.3+8.3脳1.76 =8.3脳(1.24+1.76) =8.3脳3=24.9 9999脳10...
绛旓細绛旀锛歺=48 y=47 (2) 18x+23y=2303 74x-y=1998 绛旀锛歺=27 y=79 (3) 44x+90y=7796 44x+y=3476 绛旀锛歺=79 y=48 (4) 76x-66y=4082 30x-y=2940 绛旀锛歺=98 y=51 (5) 67x+54y=8546 71x-y=5680 绛旀锛歺=80 y=59 (6) 42x-95y=-1410 21x-y=1575 绛旀锛歺=75 y...
绛旓細绛旀锛歺=87 y=82 2)44x+60y=6340 15x+42y=4122 绛旀锛歺=20 y=91 3)11x+74y=3548 71x+45y=4730 绛旀锛歺=40 y=42 4)53x+54y=3229 70x+43y=2877 绛旀锛歺=11 y=49 5)43x+9y=801 76x+16y=1420 绛旀锛歺=9 y=46 6)55x+32y=6161 45x+84y=10707 绛旀锛歺=55 y=98 7...
绛旓細(4) 76x-66y=4082 30x-y=2940 绛旀锛歺=98 y=51 (5) 67x+54y=8546 71x-y=5680 绛旀锛歺=80 y=59 鍖栫畝姹傚 ^浠ｈ〃骞虫柟 1.宸茬煡|a+3|+(b-1)^=0,姹3a^-2ab+b^鐨勫笺2.宸茬煡锛坅-1)^+4(b+2)+|c+1|=0,姹(a^-ac+c^)-2(a^+bc-2c^)鐨勫笺3.锛3x^-2y^-3xy)-(...
绛旓細绛旀:x=45 y=25 (17) 29x+44y=5281 88x-y=3608 绛旀:x=41 y=93 (18) 25x-95y=-4355 40x-y=2000 绛旀:x=50 y=59 (19) 54x+68y=3284 78x+y=1404 绛旀:x=18 y=34 (20) 70x+13y=3520 52x+y=2132 绛旀:x=41 y=50 (21) 48x-54y=-3186 24x+y=1080 绛旀:x=45 y=99 (...
绛旓細=9.7 2銆(-72)-(-37)-(-22)-17 =-72+37+22-17 =(-72+22)+(37-17)=-50+20 =-30 3銆0-(+3)-|-3.5|-(-4.2)=0-3-3.5+4.2 =-3-3.5+4.2 =-6.5+4.2 =-2.3 4銆1/2-(-1/2)-(-3/4)-1/6 =1/2+1/2+3/4-1/6 =1+3/4-1/6 =7/4-1/6 ...
绛旓細绛旀锛歺=80 y=59 (6) 42x-95y=-1410 21x-y=1575 绛旀锛歺=75 y=48 (7) 47x-40y=853 34x-y=2006 绛旀锛歺=59 y=48 (8) 19x-32y=-1786 75x+y=4950 绛旀锛歺=66 y=95 (9) 97x+24y=7202 58x-y=2900 绛旀锛歺=50 y=98 (10) 42x+85y=6362 63x-y=1638 绛旀锛歺=26...
绛旓細姹傝瘉 銆 绛旀涓.1.B 2. C 3. D 4. C 5. A 6. C 7. C 8. A 9.D 10.A 浜. 11. 12. 13. 4. 15. 鍐呭垏 16. 1.02a 17. 18. 19. 20. 涓.瑙ｇ瓟棰 21. 22. 23. (1)鐣(2)21绫 24. (1)璇佹槑;杩炵粨AB; 鍥涜竟褰EPB鏄姍 鐨勫唴鎺ュ洓杈瑰舰; 鍦ㄢ姍 涓; 鍙 AE//CN; 銆(2)杩炵粨AN;...
