四点二八减一点七五加二点七二减三点二五的简便运算

四点二八减一点七五加二点七二减三点二五的简便运算
2025-06-26 08:02:29
推荐回答(4个)
回答1:

4.28-1.75+2.72-3.25
=(4.28+2.75)-(1.75+3.25)
=7-5
=2

回答2:

=(4.28+2.72)-(1.75+3.25)
=7-5
=2

回答3:

4.28-1.75+2.72-3.25=(4.28+2.72)-(1.75+3.25)=7-5=2

回答4:

=(4.28+2.72)-(1.75+3.25) =7-5 =2