4.02×8点1×4⼀5除以括号0.6×0点81括号简便运算

4.02×8点1×4/5除以括号0.6×0点81括号简便运算
2024-11-25 07:19:41
推荐回答(1个)
回答1:

4.02×8.1×4/5÷(0.6×0.81)
=4.02÷0.6×8.1÷0.81×4/5
=6.7×10×4/5
=6.7×8
=(7-0.3)×8
=56-2.4
=53.6