简算34.17×990+341.7

分类: 作业答案 • 2021-12-19 12:03:02

问题描述：

简算34.17×990+341.7

答

34.17×990+341.7
=34.17×990+34.17*10
=34.17×(990+10)
=34.17×1000
=34170

答

还可以
34.17*990+341.7
=341.7*99+341.7
=341.7*100
=34170

答

34.17×990+341.7
=34.17×990+34.17×10
=34.17×(990+10)
=34.17×1000
=34170