1÷[(1.1-0.7)×0.2]简便计算

2025-02-23 22:35:14
推荐回答(1个)
回答1:

1÷[(1.1-0.7)×0.2]
=1÷[0.4×0.2]
=1÷0.08
=100÷8
=12.5