Question

6.6÷5.5x1.7怎么简便计算？

Answer 1

因为6.6=1.1×6，5.5=5×1.1，所以原式等于1.1×6÷（5×1.1）×1.7，去除括号时符号改变所以有1.1×6÷1.1÷5×1.7=1.7×6/5=2.04

Answer 2

简便计算就是按顺序，先算除法再算乘法
（6.6÷5.5）x1.7
=1.2x1.7
=(1+0.2)x1.7
=1.7+0.34
=2.04

Answer 3

=1.2*1.7=2.55