3.14×12^2乘二点五怎么简便

3.14×12^2乘二点五怎么简便
2025-05-07 09:30:55
推荐回答(1个)
回答1:

3.14x12²x2.5
=3.14x12x12x2.5
=3.14x12x3x4x2.5
=3.14x36x10
=3.14x360

=1130.4