【50道有理数的运算题和答案】
50道有理数的运算题和答案
【50道有理数的运算题和答案】
50道有理数的运算题和答案
借来的
39+[-23]+0+[-16]=0
[-18]+29+[-52]+60=19
[-3]+[-2]+[-1]+0+1+2=-3
[-301]+125+301+[-75]=50
[-1]+[-1/2]+3/4+[-1/4]=-1
[-7/2]+5/6+[-0.5]+4/5+19/6=1.25
[-26.54]+[-6.14]+18.54+6.14=-8
1.125+[-17/5]+[-1/8]+[-0.6]=-3
[-|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
有理数的加减混合运算
1.计算题
(1)3.28-4.76+1-;
(2)2.75-2-3+1;
(3)42÷(-1)-1÷(-0.125);
(4)(-48)÷82-(-25)÷(-6)2;
(5)-+()×(-2.4).
2.计算题:(10′×5=50′)
(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]÷2.581432÷(13×52+78)
5.4÷[2.6×(3.7-2.9)+0.62](947-599)+76×6460-(9.5+28.9)]÷0.182.881÷0.43-0.24×3.520×[(2.44-1.8)÷0.4+0.15]28-(3.41.25×2.4)0.8×〔15.5-(3.215.79)〕(31.83.2×4)÷5194-64.8÷1.8×0.936.72÷4.25×9.93.416÷(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+3510.15-10.75×0.4-5.7
5.8×(3.87-0.13)+4.2×3.74347+45×2-4160÷52
32.52-(6+9.728÷3.2)×2.587(58+37)÷(64-9×5)