6.9+0.1-6.9+0.1简便计算

2025-01-24 21:03:32
推荐回答(5个)
回答1:

6.9+0.1-6.9+0.1
=6.9-6.9+0.1+0.1
=0.2

回答2:

=6.9-6.9+0.1+01.
=0+0.2
=0.2

回答3:

=6.9-6.9+0.1+0.1
=0.2

回答4:

6.9+6.9一0.1+0.1=20.1

回答5:

=6·9-6·9+0.1+0.1=0.2