4.68+0.71+0.7+2.72+0.67+0.69用简便方法算

分类: 作业答案 • 2021-12-28 15:21:27

问题描述：

答

4.68+0.71+0.7+2.72+0.67+0.69
=（4.68+2.72）+0.67+（0.71+0.7+0.69)
=7.4+0.67+0.7*3
=8.07+2.1
=10.17