9.9ᘧ࿾101怎么简便计算?

2024-11-25 16:47:39
推荐回答(3个)
回答1:

=9.9×100+9.9×1
=990+9.9
=999.9满意望采纳

回答2:

=(10-0.1)*101
=10*101-0.1*101
=1010-10.1
=999.9

回答3: