50道有理数的乘法计算题 求50道初一有理数计算题，带答案！
\u6c42\u521d\u4e00\u6709\u7406\u6570\u4e58\u9664\u6cd550\u9053\uff0c\u8ba1\u7b97\u9898\u4e0d\u5e26\u5176\u4ed6\u7684\uff08\u6709\u7b54\u6848)\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\u201c>\u201c,\u201c0,\u5219a-ba (C)\u82e5ba (D)\u82e5a<0,ba
(\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
\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|<|b|\u8bd5\u6bd4\u8f83|a-b|\u548c|a|-|b|\u7684\u5927\u5c0f
(\u56db)\u5982\u679c|X-1|=4,\u6c42X,\u5e76\u5728\u6570\u8f74\u4e0a\u89c2\u5bdf\u8868\u793a\u6570X\u7684\u70b9\u4e0e\u8868\u793a1\u7684\u70b9\u7684\u8ddd\u79bb.
\u7ec3\u4e60\u4e09(A\u7ea7)
(\u4e00)\u9009\u62e9\u9898:
(1)\u5f0f\u5b50-40-28+19-24+32\u7684\u6b63\u786e\u8bfb\u6cd5\u662f( )
(A)\u8d1f40,\u8d1f28,\u52a019,\u51cf24\u4e0e32\u7684\u548c (B)\u8d1f40\u51cf\u8d1f28\u52a019\u51cf\u8d1f24\u52a032 (C)\u8d1f40\u51cf28\u52a019\u51cf24\u52a032 (D)\u8d1f40\u8d1f28\u52a019\u51cf24\u51cf\u8d1f32
(2)\u82e5\u6709\u7406\u6570a+b+C<0,\u5219( )
(A)\u4e09\u4e2a\u6570\u4e2d\u6700\u5c11\u6709\u4e24\u4e2a\u662f\u8d1f\u6570 (B)\u4e09\u4e2a\u6570\u4e2d\u6709\u4e14\u53ea\u6709\u4e00\u4e2a\u8d1f\u6570 (C)\u4e09\u4e2a\u6570\u4e2d\u6700\u5c11\u6709\u4e00\u4e2a\u662f\u8d1f\u6570 (D)\u4e09\u4e2a\u6570\u4e2d\u6709\u4e24\u4e2a\u662f\u6b63\u6570\u6216\u8005\u6709\u4e24\u4e2a\u662f\u8d1f\u6570
(3)\u82e5m<0,\u5219m\u548c\u5b83\u7684\u76f8\u53cd\u6570\u7684\u5dee\u7684\u7edd\u5bf9\u503c\u662f( )
(A)0 (B)m (C)2m (D)-2m
(4)\u4e0b\u5217\u5404\u5f0f\u4e2d\u4e0eX-y-Z\u8bc9\u503c\u4e0d\u76f8\u7b49\u7684\u662f( )
(A)X-(Y-Z) (B)X-(Y+Z) (C)(X-y)+(-z) (D)(-y)+(X-Z)
(\u4e8c)\u586b\u7a7a\u9898:
(1)\u6709\u7406\u6570\u7684\u52a0\u51cf\u6df7\u5408\u8fd0\u7b97\u7684\u4e00\u822c\u6b65\u9aa4\u662f:(1)________;(2)_________;(3)________ _______;(4)__________________. (2)\u5f53b0,(a+b)(a-1)>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\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
(\u4e09)\u8ba1\u7b97(\u7ed3\u679c\u4fdd\u7559\u4e24\u4e2a\u6709\u6548\u6570\u5b57): (1)3.14*3.42 (2)972*3.14*1/4
\u7ec3\u4e60\u4e5d
(\u4e00)\u67e5\u8868\u6c42\u503c:
(1)7.042 (2)2.482 (3)9.52 (4)2.0012 (5)123.42 (6)0.12342 (7)1.283 (8)3.4683 (9)(-0.5398)3 (10)53.733
(\u4e8c)\u5df2\u77e52.4682=6.901,\u4e0d\u67e5\u8868\u6c4224.682\u4e0e0.024682\u7684\u503c
(\u4e09)\u5df2\u77e55.2633=145.7,\u4e0d\u67e5\u8868\u6c42
(1)0.52633 (2)0.05263 (3)52.632 (4)52633
(\u56db)\u5df2\u77e521.762^2=473.5,\u90a3\u4e480.0021762\u662f\u591a\u5c11 \u4fdd\u7559\u4e09\u4e2a\u6709\u6548\u6570\u5b57\u7684\u8fd1\u4f3c\u503c\u662f\u591a\u5c11
(\u4e94)\u67e5\u8868\u8ba1\u7b97:\u534a\u5f84\u4e3a77cm\u7684\u7403\u7684\u8868\u9762\u79ef.(\u7403\u7684\u9762\u79ef=4\u03c0*r2
\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%
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
-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...
绛旓細(浜)濉┖棰: (1)鏈夌悊鏁颁箻娉娉曞垯鏄:涓鏁扮浉涔,鍚屽彿___,寮傚彿___,骞舵妸缁濆鍊糭__, 浠讳綍鏁板悓闆剁浉涔橀兘寰梍__. (2)鑻ュ洓涓湁鐞嗘暟a,b,c,d涔嬬Н鏄鏁,鍒檃,b,c,d涓礋鏁扮殑涓暟鍙兘鏄痏__; (3)璁＄畻(-2/199)*(-7/6-3/2+8/3)=___; (4)璁＄畻:(4a)*(-3b)*(5c)*1/6=___; (5)璁＄畻:...
绛旓細50锛160梅40 120-144梅18+35 347+45脳2-4160梅52 锛58+37锛壝凤紙64-9脳5锛95梅锛64-45锛178-145梅5脳6+42 812-700梅锛9+31脳11锛85+14脳锛14+208梅26锛夛紙284+16锛壝楋紙512-8208梅18锛120-36脳4梅18+35 (58+37锛壝凤紙64-9脳5锛(6.8-6.8脳0.55)梅8.5 0.12脳 4.8梅0...
绛旓細姹鏈夌悊鏁拌绠楅30閬(涓嶈濉┖銆侀夋嫨棰) 妤间笅鐨,鍐嶅姞浜涔樻硶銆侀櫎娉曘佷箻鏂圭郴鍒楃殑棰... 妤间笅鐨,鍐嶅姞浜涗箻娉曘侀櫎娉曘佷箻鏂圭郴鍒楃殑棰 灞曞紑 2涓洖绛 #鐑# 姝﹀ぇ闈栧湪鍐ゥ鐨勮〃鐜,鎬庝箞璇勪环鏈鎭板綋?wzbus 2012-07-25 路 TA鑾峰緱瓒呰繃3.3涓囦釜璧 鐭ラ亾澶ф湁鍙负绛斾富 鍥炵瓟閲:7854 閲囩撼鐜:87% 甯姪鐨勪汉:2525涓 ...
绛旓細A.100 B.80 C.50 D.120 銆愯冪偣銆戞湁鐞嗘暟鐨勪箻娉.銆愬垎鏋愩戜粠涓妤煎埌浜旀ゼ鍏辩粡杩囧洓灞傛ゼ锛屾墍浠ョ敤20涔樹互4锛屽啀鏍规嵁鏈夌悊鏁扮殑涔樻硶杩愮畻娉曞垯杩涜璁＄畻鍗冲彲寰楄В锛屻愯В绛斻戣В锛氫粠涓妤煎埌浜旀ゼ瑕佺粡杩囩殑鍙伴樁鏁颁负锛20×(5锕1)=80.鏁呴塀.銆愮偣璇勩戞湰棰樿冩煡浜嗘湁鐞嗘暟鐨勪箻娉曪紝瑕佹敞鎰忕粡杩囩殑妤煎眰鏁颁负鎵鍦ㄦゼ灞...
绛旓細鏈夌悊鏁扮殑涔橀櫎娉曟贩鍚杩愮畻渚嬪瓙81脳24梅12 瑙ｉ鎬濊矾:鍥涘垯杩愮畻瑙勫垯(鎸夐『搴璁＄畻,鍏绠椾箻闄鍚庣畻鍔犲噺,鏈夋嫭鍙峰厛绠楁嫭鍙,鏈変箻鏂瑰厛绠椾箻鏂)鍗宠劚寮忚繍绠(閫掔瓑寮忚绠)闇鍦ㄨ鍘熷垯鍓嶆彁涓嬭繘琛 瑙ｉ杩囩▼:81脳24梅12 =1944梅12 =162
绛旓細鏈夌悊鏁扮殑鍔犳硶锛-0.5+1.25+(-5.2)=-4.2 -1002+(-998)=-2000 鏈夌悊鏁扮殑鍑忔硶锛(-16)-(-9)=-7 5.2-8.2-4.0=-7 鏈夌悊鏁扮殑鍔犲噺娣峰悎杩愮畻锛12-(-18)+(-7)=23 0.25+(-3.25)+(+4.75)+(-6.75)=-5 3-4+9-5+1=4 鏈夌悊鏁扮殑涔樻硶:+4*(-5)=-20 (-0.125)*(-8)...
绛旓細3.璁＄畻鈶5鍒嗕箣4脳锛堬紞13鍒嗕箣5锛夛紞锛堬紞5鍒嗕箣3锛壝楋紙锛13鍒嗕箣5锛夛紞13鍒嗕箣5脳锛堬紞1鍙5鍒嗕箣3锛=锛13鍒嗕箣5涔樹互锛5鍒嗕箣4+5鍒嗕箣3鈥 5鍒嗕箣8锛=13鍒嗕箣5涔樹互5鍒嗕箣1 =13鍒嗕箣1 鈶★紙锛99鍙23鍒嗕箣22锛壝楋紙锛69锛夛紙鎷嗛」鍚庣敤涔樻硶鍒嗛厤寰嬶級锛堟彁绀猴細鎶婏紞99鍙23鍒嗕箣22鎷嗘垚锛23鍒嗕箣1锛100...
绛旓細鎴戞暣鐞嗕簡鍏充簬浜烘暀鐗堜竷骞寸骇鏁板涓婂唽鏈夌悊鏁扮殑涔橀櫎娉曡瘯鍗,甯屾湜瀵瑰ぇ瀹舵湁甯姪! 浜烘暀鐗堜竷骞寸骇鏁板涓婂唽鏈夌悊鏁扮殑涔橀櫎娉曡瘯棰 涓銆侀夋嫨棰(鍏27灏忛) 1.锕2鐨勫掓暟鏄( ) A.锕 B. C.2 D.锕2 2.锕5鐨勫掓暟鏄( ) A.锕5 B. C. D.5 3.锕7鐨勫掓暟鏄( ) A.锕 B.7 C. D.锕7 4.锕2鐨勫掓暟涓( ) A...
绛旓細鍗侀亾鍒濅竴鏁板鏈夌悊鏁颁箻娉娣峰悎杩愮畻棰 1.(-100)x(-20)x(-5)=2000x(-5)=-10000 2.(0.7)x(璐熺殑1鍙堜簲鍒嗕箣涓夛級=-28/25 3.(-2)x(-1/2)x(-3)=-3 4.(-1/2)x6=-3 5.(-152)x0x(-21)=0 6.(-1/2)x(-1/3)=1/6 7.(3/10)x(-1/4)=-3/40 8.-24x...
绛旓細鍖楀笀澶х増 鍒濅竴鏁板鏈夌悊鏁璁＄畻棰鍙婄瓟妗堟ラ渶!!!鎮祻鍒:0 - 鎻愰棶鏃堕棿2008-10-3 17:10甯︾瓟妗,鏈濂芥槸璐熸暟涓庢鏁扮殑鍔犲噺鎻愰棶鑰: 娴佹氮鍎胯蛋 - 璇曠敤鏈 涓绾у叾浠栧洖绛 鍏 3 鏉″垵涓鏁板鏈夌悊鏁扮殑娣峰悎杩愮畻缁冧範 銆愬悓姝ヨ揪绾茬粌涔犮(鏃堕棿45鍒嗛挓,婊″垎100鍒) 1.璁＄畻棰:(10鈥裁5=50鈥) (1)3.28-4.76+1 - ; (2)2.75...
