简便计算;45.36÷7.2-3.5×1.8
问题描述:
简便计算;45.36÷7.2-3.5×1.8
答
45.36÷7.2-3.5×1.8
=50.4÷8-0.7*9
=6.3-6.3
=0
答
=6.3-6.3=0