1.25×3.2×0.25 的简便算法

2024-12-27 13:30:37
推荐回答(5个)
回答1:

=1.25×(0.8×4)×0.25
=(1.25×0.8)×(4×0.25)
=1×1
=1

回答2:

1.25*(3.2*1/4)=1.25*0.8=1

回答3:

回答4:

125/100×32/10×25/100
=5/4×16/5×1/4
=1

回答5: