13.8-4.39-5.61+6.2怎样脱式计算?

2025-04-14 13:42:07
推荐回答(1个)
回答1:

解:脱式计算如下:
13.8-4.39-5.61+6.2
=(13.8+6.2)-(4.39+5.61)
=20-10
=10