8.61-2.74-1.26简便方法?

2025-06-20 13:10:39
推荐回答(2个)
回答1:

解原式=8.61-(2.74+1.26)=8.61-4=4.61

回答2:

8.61-2.74-1.26
=8.61-(2.74+1.26)
=8.61-4
=4.61