初一数学有理数的加减乘除混合运算的题，至少10道哦！~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~要快！！！！！！！ 初一数学有理数加减乘除混合运算习题，合并同列项习题，共六十道...
\u8981\u5341\u9053\u521d\u4e00\u4e0a\u7684\u6709\u7406\u6570\u8ba1\u7b97\u989810\u9053.(\u52a0\u51cf\u4e58\u9664\u4e58\u65b9\u6df7\u5408\u8fd0\u7b97)1.125*3+125*5+25*3+25
2.9999*3+101*11*(101-92)
3.(23/4-3/4)*(3*6+2)
4. 3/7 \u00d7 49/9 - 4/3
5. 8/9 \u00d7 15/36 + 1/27
6. 12\u00d7 5/6 \u2013 2/9 \u00d73
7. 8\u00d7 5/4 + 1/4
8. 6\u00f7 3/8 \u2013 3/8 \u00f76
9. 4/7 \u00d7 5/9 + 3/7 \u00d7 5/9
10. 5/2 -\uff08 3/2 + 4/5 \uff09
11. 7/8 + \uff08 1/8 + 1/9 \uff09
12. 9 \u00d7 5/6 + 5/6
13. 3/4 \u00d7 8/9 - 1/3
14. 7 \u00d7 5/49 + 3/14
15. 6 \u00d7\uff08 1/2 + 2/3 \uff09
16. 8 \u00d7 4/5 + 8 \u00d7 11/5
17. 31 \u00d7 5/6 \u2013 5/6
18. 9/7 - \uff08 2/7 \u2013 10/21 \uff09
19. 5/9 \u00d7 18 \u2013 14 \u00d7 2/7
20. 4/5 \u00d7 25/16 + 2/3 \u00d7 3/4
21. 14 \u00d7 8/7 \u2013 5/6 \u00d7 12/15
22. 17/32 \u2013 3/4 \u00d7 9/24
23. 3 \u00d7 2/9 + 1/3
24. 5/7 \u00d7 3/25 + 3/7
25. 3/14 \u00d7\u00d7 2/3 + 1/6
26. 1/5 \u00d7 2/3 + 5/6
27. 9/22 + 1/11 \u00f7 1/2
28. 5/3 \u00d7 11/5 + 4/3
29. 45 \u00d7 2/3 + 1/3 \u00d7 15
30. 7/19 + 12/19 \u00d7 5/6
31. 1/4 + 3/4 \u00f7 2/3
32. 8/7 \u00d7 21/16 + 1/2
33. 101 \u00d7 1/5 \u2013 1/5 \u00d7 21
\u6709\u7406\u6570\u7ec3\u4e60 \u7ec3\u4e60\u4e00(B\u7ea7) (\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) (\u4e8c)\u7528\u7b80\u4fbf\u65b9\u6cd5\u8ba1\u7b97: (1)(-17/4)+(-10/3)+(+13/3)+(11/3) (2)(-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4) (\u4e09)\u5df2\u77e5:X=+17(3/4),Y=-9(5/11),Z=-2.25, \u6c42:(-X)+(-Y)+Z\u7684\u503c (\u56db)\u7528">","0,\u5219a-ba (C)\u82e5ba (D)\u82e5aa,\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-a0 \u7ec3\u4e60\u4e8c(B\u7ea7) (\u4e00)\u8ba1\u7b97: (1)(+1.3)-(+17/7) (2)(-2)-(+2/3) (3)|(-7.2)-(-6.3)+(1.1)| (4)|(-5/4)-(-3/4)|-|1-5/4-|-3/4|) (\u4e8c)\u5982\u679c|a|=4,|b|=2,\u4e14|a+b|=a+b,\u6c42a-b\u7684\u503c. (\u4e09)\u82e5a,b\u4e3a\u6709\u7406\u6570,\u4e14|a|0,\u5219\u5fc5\u6709( ) (A)b\u4e0ea\u540c\u53f7 (B)a+b\u4e0ea-1\u540c\u53f7 (C)a>1 (D)b1 (6)\u4e00\u4e2a\u6709\u7406\u6570\u548c\u5b83\u7684\u76f8\u53cd\u6570\u7684\u79ef( ) (A)\u7b26\u53f7\u5fc5\u4e3a\u6b63 (B)\u7b26\u53f7\u5fc5\u4e3a\u8d1f (C)\u4e00\u4e0d\u5c0f\u4e8e\u96f6 (D)\u4e00\u5b9a\u4e0d\u5927\u4e8e\u96f6 (7)\u82e5|a-1|*|b+1|=0,\u5219a,b\u7684\u503c( ) (A)a=1,b\u4e0d\u53ef\u80fd\u4e3a-1 (B)b=-1,a\u4e0d\u53ef\u80fd\u4e3a1 (C)a=1\u6216b=1 (D)a\u4e0eb\u7684\u503c\u76f8\u7b49 (8)\u82e5a*B*C=0,\u5219\u8fd9\u4e09\u4e2a\u6709\u7406\u6570\u4e2d( ) (A)\u81f3\u5c11\u6709\u4e00\u4e2a\u4e3a\u96f6 (B)\u4e09\u4e2a\u90fd\u662f\u96f6 (C)\u53ea\u6709\u4e00\u4e2a\u4e3a\u96f6 (D)\u4e0d\u53ef\u80fd\u6709\u4e24\u4e2a\u4ee5\u4e0a\u4e3a\u96f6 (\u4e8c)\u586b\u7a7a\u9898: (1)\u6709\u7406\u6570\u4e58\u6cd5\u6cd5\u5219\u662f:\u4e24\u6570\u76f8\u4e58,\u540c\u53f7__________,\u5f02\u53f7_______________,\u5e76\u628a\u7edd\u5bf9\u503c_____, \u4efb\u4f55\u6570\u540c\u96f6\u76f8\u4e58\u90fd\u5f97__________________. (2)\u82e5\u56db\u4e2a\u6709\u7406\u6570a,b,c,d\u4e4b\u79ef\u662f\u6b63\u6570,\u5219a,b,c,d\u4e2d\u8d1f\u6570\u7684\u4e2a\u6570\u53ef\u80fd\u662f______________; (3)\u8ba1\u7b97(-2/199)*(-7/6-3/2+8/3)=________________; (4)\u8ba1\u7b97:(4a)*(-3b)*(5c)*1/6=__________________; (5)\u8ba1\u7b97:(-8)*(1/2-1/4+2)=-4-2+16=10\u7684\u9519\u8bef\u662f___________________; (6)\u8ba1\u7b97:(-1/6)*(-6)*(10/7)*(-7/10)=[(-1/6)*(-6)][(+10/7)*(-7/10)]=-1\u7684\u6839\u636e\u662f_______ (\u4e09)\u5224\u65ad\u9898: (1)\u4e24\u6570\u4e4b\u79ef\u4e3a\u6b63,\u90a3\u4e48\u8fd9\u4e24\u6570\u4e00\u5b9a\u90fd\u662f\u6b63\u6570; (2)\u4e24\u6570\u4e4b\u79ef\u4e3a\u8d1f,\u90a3\u4e48\u8fd9\u4e24\u4e2a\u6570\u5f02\u53f7; (3)\u51e0\u4e2a\u6709\u7406\u6570\u76f8\u4e58,\u5f53\u56e0\u6570\u6709\u5076\u6570\u4e2a\u65f6,\u79ef\u4e3a\u6b63; (4)\u51e0\u4e2a\u6709\u7406\u6570\u76f8\u4e58,\u5f53\u79ef\u4e3a\u8d1f\u6570\u65f6,\u8d1f\u56e0\u6570\u6709\u5947\u6570\u4e2a; (5)\u79ef\u6bd4\u6bcf\u4e2a\u56e0\u6570\u90fd\u5927. \u7ec3\u4e60(\u56db)(B\u7ea7) (\u4e00)\u8ba1\u7b97\u9898: (1)(-4)(+6)(-7) (2)(-27)(-25)(-3)(-4) (3)0.001*(-0.1)*(1.1) (4)24*(-5/4)*(-12/15)*(-0.12) (5)(-3/2)(-4/3)(-5/4)(-6/5)(-7/6)(-8/7) (6)(-24/7)(11/8+7/3-3.75)*24 (\u4e8c)\u7528\u7b80\u4fbf\u65b9\u6cd5\u8ba1\u7b97: (1)(-71/8)*(-23)-23*(-73/8) (2)(-7/15)*(-18)*(-45/14) (3)(-2.2)*(+1.5)*(-7/11)*(-2/7) (\u4e09)\u5f53a=-4,b=-3,c=-2,d=-1\u65f6,\u6c42\u4ee3\u6570\u5f0f(ab+cd)(ab-cd)\u7684\u503c. (\u56db)\u5df2\u77e51+2+3+......+31+32+33=17*33,\u8ba1\u7b97\u4e0b\u5f0f 1-3+2-6+3-9-12+...+31-93+32-96+33-99\u7684\u503c \u7ec3\u4e60\u4e94(A\u7ea7) (\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\u6216a0 (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\u2264a0,\u4e14|a|>|b|>|c|,\u5219|a|+|b|-|c|+|a+b|+|b+c|+|a+c|\u7b49\u4e8e\uff08 \uff09 A.-3a+b+c B.3a+3b+c C.a-b+2c D.-a+3b-3c 17.\u4e0b\u5217\u7ed3\u8bba\u6b63\u786e\u7684\u662f\uff08 \uff09 A. \u8fd1\u4f3c\u65701.230\u548c1.23\u7684\u6709\u6548\u6570\u5b57\u4e00\u6837 B. \u8fd1\u4f3c\u657079.0\u662f\u7cbe\u786e\u5230\u4e2a\u4f4d\u7684\u6570\uff0c\u5b83\u7684\u6709\u6548\u6570\u5b57\u662f7\u30019 C. \u8fd1\u4f3c\u65703.0324\u67095\u4e2a\u6709\u6548\u6570\u5b57 D. \u8fd1\u4f3c\u65705\u5343\u4e0e\u8fd1\u4f3c\u65705000\u7684\u7cbe\u786e\u5ea6\u76f8\u540c 18\uff0e\u4e24\u4e2a\u6709\u7406\u6570\u76f8\u52a0\uff0c\u5982\u679c\u548c\u6bd4\u5176\u4e2d\u4efb\u4f55\u52a0\u6570\u90fd\u5c0f\uff0c\u90a3\u4e48\u8fd9\u4e24\u4e2a\u52a0\u6570\uff08 \uff09 \uff08A\uff09\u90fd\u662f\u6b63\u6570 \uff08B\uff09\u90fd\u662f\u8d1f\u6570 \uff08C\uff09\u4e92\u4e3a\u76f8\u53cd\u6570 \uff08D\uff09\u5f02\u53f7 19. \u5982\u679c\u6709\u7406\u6570 \uff08 \uff09 A. \u5f53 B. C. D. \u4ee5\u4e0a\u8bf4\u6cd5\u90fd\u4e0d\u5bf9 20\uff0e\u4e24\u4e2a\u975e\u96f6\u6709\u7406\u6570\u7684\u548c\u4e3a\u6b63\u6570\uff0c\u90a3\u4e48\u8fd9\u4e24\u4e2a\u6709\u7406\u6570\u4e3a\uff08 \uff09 \uff08A\uff09\u90fd\u662f\u6b63\u6570 \uff08B\uff09\u81f3\u5c11\u6709\u4e00\u4e2a\u4e3a\u6b63\u6570 \uff08C\uff09\u6b63\u6570\u5927\u4e8e\u8d1f\u6570 \uff08D\uff09\u6b63\u6570\u5927\u4e8e\u8d1f\u6570\u7684\u7edd\u5bf9\u503c\uff0c\u6216\u90fd\u4e3a\u6b63\u6570\u3002 \u4e09\u8ba1\u7b97\u9898 21. \u6c42\u4e0b\u9762\u5404\u5f0f\u7684\u503c(-48)\u00f76-(-25)\u00d7(-4) \uff082\uff095.6+[0.9+4.4-(-8.1)]\uff1b \uff083\uff09120\u00d7( )\uff1b \uff084\uff09 22. \u67d0\u5355\u4f4d\u4e00\u661f\u671f\u5185\u6536\u5165\u548c\u652f\u51fa\u60c5\u51b5\u5982\u4e0b\uff1a+853.5\u5143\uff0c+237.2\u5143\uff0c-325\u5143\uff0c+138.5\u5143\uff0c-280\u5143\uff0c-520\u5143\uff0c+103\u5143\uff0c\u90a3\u4e48\uff0c\u8fd9\u4e00\u661f\u671f\u5185\u8be5\u5355\u4f4d\u662f\u76c8\u4f59\u8fd8\u662f\u4e8f\u635f\uff1f\u76c8\u4f59\u6216\u4e8f\u635f\u591a\u5c11\u5143\uff1f \u63d0\u793a\uff1a\u672c\u9898\u4e2d\u6b63\u6570\u8868\u793a\u6536\u5165\uff0c\u8d1f\u6570\u8868\u793a\u652f\u51fa\uff0c\u5c06\u4e03\u5929\u7684\u6536\u5165\u6216\u652f\u51fa\u6570\u76f8\u52a0\u540e\uff0c\u548c\u4e3a\u6b63\u6570\u8868\u793a\u76c8\u4f59\uff0c\u548c\u4e3a\u8d1f\u6570\u8868\u793a\u4e8f\u635f\u3002 23. \u67d0\u5730\u4e00\u5468\u5185\u6bcf\u5929\u7684\u6700\u9ad8\u6c14\u6e29\u4e0e\u6700\u4f4e\u6c14\u6e29\u8bb0\u5f55\u5982\u4e0b\u8868\uff0c\u54ea\u5929\u7684\u6e29\u5dee\u6700\u5927\u54ea\u5929\u7684\u6e29\u5dee\u6700\u5c0f\uff1f \u661f\u671f \u4e00 \u4e8c \u4e09 \u56db \u4e94 \u516d \u4e03 \u6700\u9ad8\u6c14\u6e29 10ºC 11ºC 12ºC 9ºC 8ºC 9ºC 8ºC \u6700\u4f4e\u6c14\u6e29 2ºC 0ºC 1ºC -1ºC -2ºC -3ºC -1ºC 24\u3001\u6b63\u5f0f\u6392\u7403\u6bd4\u8d5b\uff0c\u5bf9\u6240\u4f7f\u7528\u7684\u6392\u7403\u7684\u91cd\u91cf\u662f\u6709\u4e25\u683c\u89c4\u5b9a\u7684\u3002\u68c0\u67e55\u4e2a\u6392\u7403\u7684\u91cd\u91cf\uff0c\u8d85\u8fc7\u89c4\u5b9a\u91cd\u91cf\u7684\u514b\u6570\u8bb0\u4f5c\u6b63\u6570\uff0c\u4e0d\u8db3\u89c4\u5b9a\u91cd\u91cf\u7684\u514b\u6570\u8bb0\u4f5c\u8d1f\u6570\uff0c\u68c0\u67e5\u7ed3\u679c\u5982\u4e0b\u8868\uff1a +15 -10 +30 -20 -40 \u6307\u51fa\u54ea\u4e2a\u6392\u7403\u7684\u8d28\u91cf\u597d\u4e00\u4e9b\uff08\u5373\u91cd\u91cf\u6700\u63a5\u8fd1\u89c4\u5b9a\u91cd\u91cf\uff09\uff1f\u4f60\u600e\u6837\u7528\u5b66\u8fc7\u7684\u7edd\u5bf9\u503c\u77e5\u8bc6\u6765\u8bf4\u660e\u8fd9\u4e2a\u95ee\u9898\uff1f 25. \u5df2\u77e5 ; 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=7225=100\u00d78\u00d7(8+1)+25; =100\u00d710\u00d7(10+1)+25=11025. 13\uff0e , , .\u63d0\u793a:\u8fd9\u4e00\u5217\u6570\u7684\u7b2cn\u9879\u53ef\u8868\u793a\u4e3a(-1)n . 14\uff0e \u63d0\u793a\uff1a\uff081\uff09\u96c6\u5408\u662f\u6307\u5177\u6709\u67d0\u4e00\u7279\u5f81\u7684\u4e00\u7c7b\u4e8b\u7269\u7684\u5168\u4f53\uff0c\u6ce8\u610f\u4e0d\u8981\u6f0f\u6389\u65700\uff0c\u9898\u76ee\u4e2d\u53ea\u662f\u5177\u4f53\u7684\u51e0\u4e2a\u7b26\u5408\u6761\u4ef6\u7684\u6570\uff0c\u53ea\u662f\u4e00\u90e8\u5206\uff0c\u6240\u4ee5\u901a\u5e38\u8981\u52a0\u7701\u7565\u53f7\u3002 \uff082\uff09\u975e\u8d1f\u6570\u8868\u793a\u4e0d\u662f\u8d1f\u6570\u7684\u6240\u6709\u6709\u7406\u6570\uff0c\u5e94\u4e3a\u6b63\u6570\u548c\u96f6\uff0c\u90a3\u4e48\u975e\u6b63\u6570\u8868\u793a\u4ec0\u4e48\u5462\uff1f\uff08\u7b54\uff1a\u8d1f\u6570\u548c\u96f6\uff09 \u7b54\u6848\uff1a\u6574\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d \u8d1f\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d \u5206\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d \u975e\u8d1f\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d \u6b63\u6709\u7406\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d \u8d1f\u5206\u6570\u96c6\u5408\uff1a\uff5b \u2026\u2026\uff5d \u4e8c \u9009\u62e9\u9898 15\uff0e D.\u63d0\u793a\uff1a\u5bf9\u4e8e\u4e24\u4e2a\u8d1f\u6570\u6765\u8bf4\uff0c\u7edd\u5bf9\u503c\u5c0f\u7684\u6570\u53cd\u800c\u5927\uff0c\u6240\u4ee5A\u9519\u8bef\u3002\u5bf9\u4e8e\u4e24\u4e2a\u6b63\u6570\u6765\u8bf4\uff0c\u7edd\u5bf9\u503c\u5927\u7684\u6570\u5927\uff0c\u6240\u4ee5B\u9519\u8bef\u3002\u4e92\u4e3a\u76f8\u53cd\u6570\u7684\u4e24\u4e2a\u6570\u7684\u7edd\u5bf9\u503c\u76f8\u7b49\u3002 16\uff0eA.\u63d0\u793a\uff1a-a+b-(-c)-(a+b)+(b+c)-(a+c)= -3a+b+c 17. C.\u63d0\u793a\uff1a\u6709\u6548\u6570\u5b57\u7684\u5b9a\u4e49\u662f\u4ece\u5de6\u8fb9\u7b2c\u4e00\u4f4d\u4e0d\u4e3a\u96f6\u7684\u6570\u5b57\u8d77\uff0c\u5230\u53f3\u8fb9\u6700\u540e\u4e00\u4e2a\u6570\u5b57\u7ed3\u675f\u300218\uff0eB 19.C \u63d0\u793a\uff1a\u5f53n\u4e3a\u5947\u6570\u65f6, , <0. \u5f53n\u4e3a\u5076\u6570\u65f6\uff0c , <0.\u6240\u4ee5n\u4e3a\u4efb\u610f\u81ea\u7136\u6570\u65f6\uff0c\u603b\u6709 <0\u6210\u7acb.20\uff0e D.\u63d0\u793a\uff1a\u4e24\u4e2a\u6709\u7406\u6570\u60f3\u52a0\uff0c\u6240\u5f97\u6570\u7684\u7b26\u53f7\u7531\u7edd\u5bf9\u503c\u5927\u7684\u6570\u89c9\u5f97\u51b3\u5b9a\u3002 \u4e09\u8ba1\u7b97\u9898 21. \u6c42\u4e0b\u9762\u5404\u5f0f\u7684\u503c \uff081\uff09-108 \uff082\uff0919 .\u63d0\u793a\uff1a\u5148\u53bb\u62ec\u53f7\uff0c\u540e\u8ba1\u7b97\u3002 \uff083\uff09-111 .\u63d0\u793a: 120\u00d7( ) 120\u00d7( ) =120\u00d7(- )+120\u00d7 -120\u00d7 = -111 \uff084\uff09 .\u63d0\u793a; =1- + = 22. \u63d0\u793a\uff1a\u672c\u9898\u4e2d\u6b63\u6570\u8868\u793a\u6536\u5165\uff0c\u8d1f\u6570\u8868\u793a\u652f\u51fa\uff0c\u5c06\u4e03\u5929\u7684\u6536\u5165\u6216\u652f\u51fa\u6570\u76f8\u52a0\u540e\uff0c\u548c\u4e3a\u6b63\u6570\u8868\u793a\u76c8\u4f59\uff0c\u548c\u4e3a\u8d1f\u6570\u8868\u793a\u4e8f\u635f\u3002 \u89e3\uff1a\uff08+853.5\uff09+\uff08+237.2\uff09+\uff08-325\uff09+\uff08+138.5\uff09+\uff08-520\uff09+\uff08-280\uff09+\uff08+103\uff09 \uff1d[\uff08+853.5\uff09+\uff08+237.2\uff09+\uff08+138.5\uff09+\uff08+103\uff09]+[\uff08-325\uff09+\uff08-520\uff09+\uff08-280\uff09] \uff1d\uff08+1332.2\uff09+\uff08-1125\uff09 \uff1d+207.2 \u6545\u672c\u661f\u671f\u5185\u8be5\u5355\u4f4d\u76c8\u4f59\uff0c\u76c8\u4f59207.2\u5143\u3002 23. \u63d0\u793a\uff1a\u6c42\u6e29\u5dee\u5229\u7528\u51cf\u6cd5\uff0c\u5373\u6700\u9ad8\u6e29\u5ea6\u7684\u5dee\uff0c\u518d\u6bd4\u8f83\u5b83\u4eec\u7684\u5927\u5c0f\u3002 \u89e3\uff1a\u5468\u4e00\u6e29\u5dee\uff1a10-2\uff1d8\uff08ºC\uff09 \u5468\u4e8c\u6e29\u5dee\uff1a11-0\uff1d11\uff08ºC\uff09 \u5468\u4e09\u6e29\u5dee\uff1a12-1\uff1d11\uff08ºC\uff09 \u5468\u56db\u6e29\u5dee\uff1a9-\uff08-1\uff09\uff1d10\uff08ºC\uff09 \u5468\u4e94\u6e29\u5dee\uff1a8-\uff08-2\uff09\uff1d10\uff08ºC\uff09 \u5468\u516d\u6e29\u5dee\uff1a9-\uff08-3\uff09\uff1d12\uff08ºC\uff09 \u5468\u65e5\u6e29\u5dee\uff1a8-\uff08-1\uff09\uff1d9\uff08ºC\uff09 \u6240\u4ee5\u5468\u516d\u6e29\u5dee\u6700\u5927\uff0c\u5468\u4e00\u6e29\u5dee\u6700\u5c0f\u3002 24\u3001 \u89e3\uff1a\u7b2c\u4e8c\u53ea\u6392\u7403\u8d28\u91cf\u597d\u4e00\u4e9b\uff0c\u5229\u7528\u8fd9\u4e9b\u6570\u636e\u7684\u7edd\u5bf9\u503c\u7684\u5927\u5c0f\u6765\u5224\u65ad\u6392\u7403\u7684\u8d28\u91cf\uff0c\u7edd\u5bf9\u503c\u8d8a\u5c0f\u8bf4\u660e\u8d8a\u63a5\u8fd1\u89c4\u5b9a\u91cd\u91cf\uff0c\u56e0\u6b64\u8d28\u91cf\u4e5f\u5c31\u597d\u4e00\u4e9b\u3002 25. \uff081\uff09 \uff082\uff09\u246025502500\uff1b\u63d0\u793a\uff1a\u539f\u5f0f= \u2461\u539f\u5f0f= =23\u00d713+23\u00d723+23\u00d733+23\u00d743+23\u00d753+\u2026\u2026+23\u00d7503 =23(13+23+33+43+53+\u2026\u2026+503) =8\u00d7 =13005000 26\uff0e (1) \u5341\u5b57\u6846\u4e2d\u7684\u4e94\u4e2a\u6570\u7684\u548c\u7b49\u4e8e\u4e2d\u95f4\u76845\u500d\u3002 (2) 5x (3) \u4e0d\u80fd\uff0c\u5047\u8bbe5x=201.x=40.2.\u4e0d\u662f\u6574\u6570.\u6240\u4ee5\u4e0d\u5b58\u5728\u8fd9\u4e48\u4e00\u4e2ax. 27\uff0ey=ax5+bx3+cx-5,y+5= ax5+bx3+cx,\u5f53x=-5\u65f6\uff0cy+5=12. -(y+5)=-ax5-bx3-cx=a(-x)5+b(-x)3+c(-x) \u2234\u5f53x=5\u65f6\uff0ca(-5)5+b(-5)3+c(-5)\uff1d\uff0d12\uff1b a(-5)5+b(-5)3+c(-5)-5= -17\u6dfb\u52a0\u8bc4\u8bba
wfx62 | 2009-01-14 19:25:57\u67090\u4eba\u8ba4\u4e3a\u8fd9\u4e2a\u56de\u7b54\u4e0d\u9519 | \u67090\u4eba\u8ba4\u4e3a\u8fd9\u4e2a\u56de\u7b54\u6ca1\u6709\u5e2e\u52a9-5+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 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
4. -32÷2÷2 5. 20-5÷(-15) 6. -6÷(-3×2) 7.17-8÷(-2)+4×(-3)
8.32-50÷(-2)2×(+0.1)-1 9.–13-[1-(1-0.5×43)] 10.(-8÷23)-(-8÷2) 11.(-12) ×5+(-1) ×52 - 12×5+(-1×5)
12.(-2)2-(-52) ×(-1)5-87÷(-3) ×(-1)4
13. –14-(1-0.5) × ×[2-(-3)2] 14. (-1)8- (1 +2 -3 )×(-24)
-32×(-3)2
(-8÷23)-(-8÷2)3
17-8÷(-2)+4×(-3)
32-50÷(-2)2×(+0.1)-1
–13-[1-(1-0.5×43)]
(-2)2-(-52) ×(-1)5-87÷(-3) ×(-1)4
(-12) ×5+(-1) ×52 - 12×5+(-1×5)2
–14-(1-0.5) × ×[2-(-3)2]
(-1)8- (1 +2 -3 )×(-24)
绛旓細鏈夌悊鏁版贩鍚杩愮畻 1) (-9)-(-13)+(-20)+(-2)(2) 3+13-(-7)/6 (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/(-...
绛旓細(4)|(-5/4)-(-3/4)|-|1-5/1)(-4)(+6)(-7)(2)(-27)(-25)(-3)(-4)4-|-3/4|)锛(1)-2.5脳(-4.8)脳(0.09)梅(-0.27)锛涙槸涔樺彿銆俒-|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...
绛旓細3銆佹嫭鍙凤細褰撲竴涓〃杈惧紡涓寘鍚嫭鍙锋椂锛屾垜浠渶瑕佸厛璁＄畻鎷彿鍐呯殑琛ㄨ揪寮忋傚湪璁＄畻鎷彿鍐呯殑琛ㄨ揪寮忔椂锛屼篃闇瑕侀伒寰悓鏍风殑杩愮畻椤哄簭銆傚湪杩涜鏈夌悊鏁扮殑娣峰悎杩愮畻鏃讹紝鎴戜滑闇瑕侀伒寰繍绠楀緥鍜岃繍绠楁硶鍒欍傛湁鐞嗘暟鍦鏁板涓殑杩愮敤 1銆佹湁鐞嗘暟鍦ㄧ畻鏈腑琚箍娉涗娇鐢ㄣ鍔犲噺涔橀櫎绛夊熀鏈繍绠楀湪鏈夌悊鏁拌寖鍥村唴鍙互寰堝鏄撳湴杩涜銆傞氳繃寮曞叆鍒嗘暟...
绛旓細鏁欏笀寮曞瀛︾敓涓璧锋荤粨鏈夌悊鏁版贩鍚杩愮畻鐨勮寰. 1.鍏堜箻鏂,鍐涔橀櫎,鏈鍚鍔犲噺; 2.鍚岀骇杩愮畻浠庡乏鍒板彸鎸夐『搴忚繍绠; 3.鑻ユ湁鎷彿,鍏堝皬鍐嶄腑鏈鍚庡ぇ,渚濇璁＄畻. 鍥涖佷綔涓 1.璁＄畻: 2.璁＄畻: (1)-8+4梅(-2); (2)6-(-12)梅(-3); (3)3��(-4)+(-28)梅7; (4)(-7)(-5)-90梅(-15)...
绛旓細鏈夌悊鏁扮殑鍔犲噺涔橀櫎娣峰悎杩愮畻锛1銆佸厛涔橀櫎锛屽悗鍔犲噺锛屾湁鎷彿鏃跺厛绠楁嫭鍙烽噷杈圭殑锛屾湁澶氶噸鎷彿鏃讹紝瑕佸厛绠楀皬鎷彿锛屽啀绠椾腑鎷彿锛屾渶鍚庣畻澶ф嫭鍙枫2銆佸悓鏄箻闄ゆ垨鑰呭悓鏄姞鍑忥紝鎸変粠宸﹀埌鍙宠绠
绛旓細鍔犲噺娣峰悎杩愮畻鍙互缁熶竴涓哄姞娉曡繍绠椼傚嵆a + b鈥揷 = a + b +锛-c锛夛紙鈥3锛夆擄紙+5锛+锛堚4锛夆擄紙鈥10锛 2銆3鈥擄紙+5锛夆擄紙鈥1锛+锛堚5锛1鈥4 + 3鈥5 4銆佲2.4 + 3.5鈥4.6 + 3.5 5銆 3鈥2 + 5鈥8 鏈夌悊鏁扮殑璁よ瘑 姝ｆ暣鏁板拰姝ｅ垎鏁板悎绉颁负姝ｆ湁鐞嗘暟锛岃礋鏁存暟鍜岃礋鍒嗘暟鍚堢О涓...
绛旓細1.125*3+125*5+25*3+25 2.9999*3+101*11*(101-92)3.(23/4-3/4)*(3*6+2)4. 3/7 脳 49/9 - 4/3 5. 8/9 脳 15/36 + 1/27 6. 12脳 5/6 鈥 2/9 脳3 7. 8脳 5/4 + 1/4 8. 6梅 3/8 鈥 3/8 梅6 9. 4/7 脳 5/9 + 3/7 脳 5/9 10. 5/2...
绛旓細鐢变簬浠讳綍涓涓暣鏁版垨鍒嗘暟閮藉彲浠ュ寲涓哄崄杩涘埗寰幆灏忔暟锛屽弽涔嬶紝姣忎竴涓崄杩涘埗寰幆灏忔暟涔熻兘鍖栦负鏁存暟鎴栧垎鏁帮紝鍥犳锛屾湁鐞嗘暟涔熷彲浠ュ畾涔変负鍗佽繘鍒跺惊鐜皬鏁般傛湁鐞嗘暟闆嗘槸鏁存暟闆嗙殑鎵╁紶銆傚湪鏈夌悊鏁伴泦鍐咃紝鍔犳硶銆佸噺娉曘佷箻娉曘侀櫎娉曪紙闄ゆ暟涓嶈兘涓洪浂锛4绉嶈繍绠楅氳鏃犻樆銆鏈夌悊鏁扮殑澶у皬椤哄簭鐨勮瀹氾細濡傛灉a-b鏄鏈夌悊鏁帮紝褰揳...
绛旓細-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...
绛旓細鍒濅竴鏁板鏈夌悊鏁扮殑娣峰悎杩愮畻缁冧範 缁冧範涓(B绾) (涓)璁＄畻棰: (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) (浜)鐢ㄧ畝渚挎柟娉曡绠: (1)(-17/4)+(-10/3)+(+13/3)+(11...
