0.25*1.58*41.69 1.69*99的简便计算?

2025-04-04 08:12:31
推荐回答(1个)
回答1:

0.25×1.58×4+1.69+1.69×99
=0.25×4×1.58+(1+99)×1.69
=1×1.58+100×1.69
=1.58+169
=170.58
这是典型的乘法交换律和结合律的综合应用