Question

用竖式计算，得数保留两位小数．
5.43×0.86                       
78.58÷3.7．

Answer 1

5.43×0.86≈4.67；
   

5.4  3  × 0.8  6

  

.

3  2  5  8

4  3  4  4

4.6  6  9  8

78.58÷3.7≈21.24．