5.25*4简便运算?

2024-11-02 04:42:04
推荐回答(3个)
回答(1):

5.25*4简便运算,
5.25*4
=(5+0.25)*4
=5*4+0.25*4
=20+1
=21

回答(2):

5*4+0.25*4=21

回答(3):

=5*4+0.25*4
=20+1
=21