2.87+5.6-0.87+4.4

2024-12-28 11:59:24
推荐回答(3个)
回答1:

(2.87-0.87)+(5.6+4.4)=12

回答2:

(2.87一0.87)十(5.6十4.4)=2十10=12

回答3:

=(2.87-0.87)+(5.6+4.4)
=2+10
=12