2.47 6.6 0.53-3.4简便计算怎么做?

2.47+6.6+0.53-3.4 简算怎么做
2025-06-29 04:59:10
推荐回答(1个)
回答1:

2.47+6.6+0.53-3.4
=(2.47+0.53)+(6.6-3.4)
=3+3.2
=6.2