2.5X1.6X1.25简算

2025-03-26 21:17:45
推荐回答(2个)
回答1:

2.5X1.6X1.25
=2.5X2×0.8X1.25
=(2.5X2)×(0.8X1.25)
=5×1
=5

回答2:

2.5X1.6X1.25=(2.5X0.2)X(8X1.25)
=0.5X1=0.5.