1.2*66+3.6*7.8简算
问题描述:
1.2*66+3.6*7.8简算
简便运算
答
1.2*66+3.6*7.8
=1.2*66+1.2*23.4
=1.2*(66+23.4)
=1.2*89.4
=107.28