3.72÷0.26+6.28×6-3.72×37÷13的简便运算?

题目

3.72÷0.26+6.28×6-3.72×37÷13的简便运算?
好的加20

答案

3.72/0.26+6.28*6-3.72*37/13
=3.72*50/13-3.72*37/13+6.28*6
=3.72/13*(50-37)+6.28*6
=3.72+6.28*6
=3.72+(10-3.72)*6
=3.72+10*6-3.72*6
=60-3.72*5
=41.4