请教小学数学问题,求高手解答,要有详细步骤哦~

2024-11-29 02:49:50
推荐回答(2个)
回答(1):

1. (71.2-71.2*0.9)/0.25
=(71.2-64.08)/ 0.25
=7.12/0.25
=28.48
2. 13.5/[(2-0.8 )*4.5]
=13.5/[1.2*4.5]
=13.5/5.4
=2.5
3. [(6.1-4.6)/0.8]*0.4
=[1.5/0.8]*0.4
=1.875*0.4
=0.75

回答(2):

给分就告诉你