0.13乘0.47乘1.8的简便运算
问题描述:
0.13乘0.47乘1.8的简便运算
答
0.13乘0.47乘1.8
=0.13*(0.5-0.03)(2-0.2)
=0.13*(1-0.1-0.06+0.006)
=(0.1+0.03)*0.846
=0.0846+0.02538
= 0.10998