用简便方法计算72.8+(72.8-5.28)

用简便方法计算72.8+(72.8-5.28)
2024-12-03 23:08:40
推荐回答(2个)
回答1:

72.8+(72.8-5.28)
=72.8x2-5.28
=145.6-5.28
=140.32

回答2:

72.8+67=139.8