0.64×78+7.8×3.6运用简便算法怎么做?

2025-02-24 05:44:49
推荐回答(1个)
回答1:

简便算法如下:
0.64×78+7.8×3.6
=6.4x7.8+7.8x3.6
=(6.4+3.6)x7.8
=10x7.8
=78