9.42×10.9-94.2×0.9用简便方法怎么做

2025-01-21 03:01:18
推荐回答(1个)
回答1:

9.42×10.9-94.2×0.9用简便方法怎么做
=9.42x(10.9-0.9)
=9.42x10
=94.2