3.9+0.1一3.9+0.1用简便方法计算

2025-04-01 07:15:59
推荐回答(5个)
回答1:

回答2:

=3.9-3.9+0.1+0.1=0.2

回答3:

3.9-3.9+0.1+0.1=0.2

回答4:

=3.9-3.9+0.1+0.1=0.2

回答5: