3.2×5.7 68×0.57的简便方法

2025-05-21 05:15:15
推荐回答(1个)
回答1:

3.2×5.7+68×0.57
=3.2×5.7+6.8×5.7
=(3.2+6.8)×5.7
=10×5.7
=57