6.75 +(3.6-0.35)ⅹ0.4简便方法?

2025-04-07 22:09:48
推荐回答(1个)
回答1:

6.75 +(3.6-0.35)ⅹ0.4
=6.75 +3.6ⅹ0.4-0.35ⅹ0.4
=6.75 +1.44-0.14
=6.75+1.3
=8.05