5.6×37点5 56×6点二五这种题用简便算法怎么算,请求答复

2025-02-24 12:55:37
推荐回答(2个)
回答1:

简便计算
5.6×37.5+56×6.25
=5.6×37.5+5.6×62.5
=5.6×(37.5+62.5)
=5.6×100
=560
5.6×37.5+56×6.25
=56×3.75+56×6.25
=56×(3.75+6.25)
=56×10
=560

回答2:

5.6×37.5+56×6.25
=5.6x(37.5+62.5)
=5.6x100
=560