1.35x15-3.5x1.5的简便计算?

Hello, I want to know the simple calculation method of this formula.
2025-12-14 08:08:51
推荐回答(2个)
回答1:

解,1.35x15-3.5x1.5
=13.5x1.5-3.5x1.5
=1.5x(13.5-3.5)
=1.5x10
=15

回答2:

用乘法分配律简算
原式=1.35×15-0.35×15
=15×(1.35-0.35)
=15×1
=15