数学题六点八加三点二除以二点五能否用简便方法计算

2025-12-14 03:16:08
推荐回答(1个)
回答1:

6.8+3.2÷2.5
=6.8+3.2÷5/2
=6.8+3.2×2/5
=6.8+1.28
=8.08