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  七年级上册数学计算题一百道

  七年级上册数学计算题一百道

2回答
2019-06-14 06:21
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陈振羽

  1、计算:3×(-4)+(-28)÷722、计算:4×(-3)2-15÷(-3)-5023、求代数式(2a2-5a)-2(3a+5-2a2)的值,其中a=-123+(-73)

  (-84)+(-49)

  7+(-2.04)

  4.23+(-7.57)

  (-7/3)+(-7/6)

  9/4+(-3/2)

  3.75+(2.25)+5/4

  -3.75+(+5/4)+(-1.5)

  (17/4)+(-10/3)+(+13/3)+(11/3)

  (-1.8)+(+0.2)+(-1.7)+(0.1)+(+1.8)+(+1.4)

  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

  -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

  -3x+2y-5x-7y

  -1+2-3+4-5+6-7;

  50-28+(-24)-(-22);

  19.8-(-20.3)-(+20.2)-10.8;

  0.25-+(-1)-(+3).

  -1-23.33-(+76.76);

  1-2*2*2*2;

  (-6-24.3)-(-12+9.1)+(0-2.1);

  -1+8-7)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

  还有50道题,不过没有答案

  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=1.026.4χ-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

2019-06-14 06:23:25
刘新爱

  (1):(-8)-(-15)+(-9)-(-12)

  =-8+15-9+12

  =10

  (2):(-40)+29-(-15)-|-24|

  =-21+15-24

  =-30

  (3):(2/3)-(1/8)-(-1/3)+(-3/8)

  =(2/3)-(-1/3)-((1/8)-(3/8))

  =1+(1/4)

  =5/4

  (4):0.5+(-1/4)-(-2.75)+(1/2)

  =0.5+(1/2)+((-1/4)+2.75)

  =1+2.5

  =3.5

  (5):(-2/5)+(-5/6)-(-4.5)-0.6

  =(-2/5)-0.6-5/6+4.5

  =-1+(16/6)

  =16/6

  (6):(-2/3)+(-1/6)-(-1/4)-(1/2)

  =(-2/3)-(1/6)+(1/4)-(1/2)

  =-13/12

  (7):(-3/3)乘(-1/2)*(-8/15)

  =-1*(-1/2)*(-8/15)

  =-4/15

  (8):(-0.1)除以(1/2)*(1000)

  =-0.2*1000

  =-200

  (9):(-18)除以2.25乘4/9除以(-16)

  =-8*(4/9)/(-16)

  =-(32/9)/(-16)

  =2/9

  (10):[(3/4)-(17/36)+(7/12)]乘|-36|

  =36-17+21

  =40

  (11):(504/11)除以9

  =(504/11)*(1/9)

  =56/11

  (12):(-5)乘(-27/7)+(-7)乘(-27/7)+12乘(-27/7)

  =((-5)+(-7)+12))*(-27/7)

  =0*(-27/7)

  =0答案肯定对

  这样的问题可以到百度文库中去找,很方便的

2019-06-14 06:25:13

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