问题:

【..列完整算式1.25x3.43-1.25-1.43x1.251.6x16+0.4x361.6的前面是空白的】

更新时间:2023-06-04 19:38:07

问题描述:

..列完整算式

1.25x3.43-1.25-1.43x1.251.6x16+0.4x36

1.6的前面是空白的

方聪丽回答:

  1.25x3.43-1.25-1.43x1.25

  =1.25x(3.43-1-1.43)

  =1.25x1

  =1.25

  1.6x16+0.4x36

  =1.6x16+1.6x9

  =0.4x4x(16+9)

  =0.4x4x25

  =0.4x100

  =40