7.2×4.4-3.6×0.8怎样简便方法?

2024-11-25 08:01:47
推荐回答(1个)
回答1:

=3.6×2×4.4-3.6×0.8
=3.6×(8.8-0.8)
=(4-0.4)×8
=32-3.2
=28.8