求20道方程题,和简便算法计算小数,分数.下册的-查字典问答网
分类选择

来自蒋慰孙的问题

  求20道方程题,和简便算法计算小数,分数.下册的

  求20道方程题,和简便算法计算小数,分数.

  下册的

1回答
2020-03-07 01:27
我要回答
请先登录
罗雄昌

  31×43-31+58×3156×78+13×83+27×78+83×9

  199+99×997.63×9.9+0.763

  3.74×5.8+62.6×0.583.43×14+1.4×75.7-14

  1.120-36×4÷18+35

  2.(58+37)÷(64-9×5)

  3.(6.8-6.8×0.55)÷8.5

  4.0.12×4.8÷0.12×4.8

  5.(3.2×1.5+2.5)÷1.6(2)3.2×(1.5+2.5)÷1.6

  6.6-1.6÷4=5.38+7.85-5.37=

  7.7.2÷0.8-1.2×5=6-1.19×3-0.43=

  8.6.5×(4.8-1.2×4)=0.68×1.9+0.32×1.9

  9.10.15-10.75×0.4-5.7

  10.5.8×(3.87-0.13)+4.2×3.74

  11.32.52-(6+9.728÷3.2)×2.5

  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.[-|98|+76+(-87)]*23[56+(-75)-(7)]-(8+4+3)

  32.5+21*8/2-6-59

  33.68/21-8-11*8+61

  34.-2/9-7/9-56

  35.4.6-(-3/4+1.6-4-3/4)

  36.1/2+3+5/6-7/12

  37.[2/3-4-1/4*(-0.4)]/1/3+2

  38.22+(-4)+(-2)+4*3

  39.-2*8-8*1/2+8/1/8

  40.(2/3+1/2)/(-1/12)*(-12)

  41.(-28)/(-6+4)+(-1)

  42.2/(-2)+0/7-(-8)*(-2)

  43.(1/4-5/6+1/3+2/3)/1/2

  44.18-6/(-3)*(-2)

  45.(5+3/8*8/30/(-2)-3

  46.(-84)/2*(-3)/(-6)

  47.1/2*(-4/15)/2/3

  48.-3x+2y-5x-7y

  49.2/3÷1/2-1/4×2/5

  50.2-6/13÷9/26-2/3

  解方程.

  ①12-4x=2

  ②38:x=4.75:1

  ③1/3x+5/6x=1.4

  12x+34x=1

  18x-14x=12

  23x-5×14=14

  12+34x=56

  22-14x=12

  23x-14x=14

  x+14x=65

  23x=14x+14

  30x-12x-14x=12

  20%+(1-20%)(320-x)=320×40%

  2(x-2)+2=x+1

  2(x-2)-3(4x-1)=9(1-x)

  11x+64-2x=100-9x

  15-(8-5x)=7x+(4-3x)

  3(x-7)-2[9-4(2-x)]=22

  3/2[2/3(1/4x-1)-2]-x=2

2020-03-07 01:29:42

最新问答

推荐文章

猜你喜欢

附近的人在看

推荐阅读

拓展阅读

  • 大家都在看
  • 小编推荐
  • 猜你喜欢
  •