29乘以0.1加上6.7乘以2.9加上2.9乘以2.3简便计算

2025-04-26 01:19:35
推荐回答(2个)
回答1:

原式
=29x0.1+6.7x2.9+2.9x2.3
=2.9x1+6.7x2.9+2.9x2.3
=2.9x(1+6.7+2.3)
=2.9x10
=29

供参考。

回答2: