5.4÷45怎样简便计算?

2025-03-29 01:40:39
推荐回答(2个)
回答1:

5.4÷45
=5.4÷9÷5
=0.6÷5
=(0.6×2)÷(5×2)
=1.2÷10
=0.12

回答2:

5.4÷45
=5.4÷9÷5
=0.6÷5
=0.12