3.2x1.25x2 .5简便计算

3.2x1.25x2 .5简便计算
2025-03-23 07:00:52
推荐回答(2个)
回答1:

3.2x1.25x2 .5
= 0.8x4x1.25x2 .5
= (0.8x1.25)x(4x2 .5)
= 1x10
= 10

回答2:

3.2和2.5先×在×1.25