(48+32)除以8乘2的简便方法

2025-05-13 13:45:59
推荐回答(2个)
回答1:

48除以0.8乘1.25=60×0.8÷0.8×1.25=60×1.25=30×2×1.25=30×2.5=75

回答2:

(48+32)÷8X2
=80÷8X2
=10X2
=20