3.26乘4.5+5.2乘3.26+9.7乘6.74 简便算法

2025-03-04 18:14:21
推荐回答(1个)
回答1:

3.26*4.5+5.2*3.26+9.7*6.74
=3.26X(4.5+5.2)+9.7X6.74
=3.26X9.7+9.7X6.74
=(3.26+6.74)X9.7
=10X9.7
=97