80.5⼀1.25怎样简算

2024-11-17 17:27:28
推荐回答(2个)
回答1:

80.5/1.25=80.5×0.8=64.4

回答2:

80.5÷1.25=(80.5×8)÷(1.25×8)
=644÷10
=64.4