75×4×42的简便算法?

2024-11-02 02:25:07
推荐回答(2个)
回答1:

你好
简判岩便计算过掘伏御厅团程如下
75×4×42
=25×3×4×42
=25×4×3×42
=100×126
=12600
望采纳

回答2:

75×4×42
=25×3×4×42
=100×3×42
=300×42
=12600