4.55-(6.8+15.55)用简便计算怎么算?

2025-03-23 19:49:46
推荐回答(3个)
回答1:

4.55-(6.8+15.55)
=4.55-6.8-15.55
=4.55-15.55-6.8
=-11-6.8
=-17.8

回答2:

4.55-14.55-6.8
=-10-6.8
= -16.8

回答3: