6.5ⅹ3.8-5ⅹ0.38简便方法计算

6.5ⅹ3.8-5ⅹ0.38简便方法计算
2024-11-21 02:35:50
推荐回答(2个)
回答1:

6.5ⅹ3.8-5ⅹ0.38简便方法计算
=6.5x3.8-0.5x3.8
=(6.5-0.5)x3.8
=6x3.8
=22.8

回答2:

原式=6.5×3.8-0.5×3.8=(6.5-0.5)×3.8=6×3.8=28.8