11×22+0.22×3300+330×4.4简算

分类: 作业答案 • 2021-12-31 10:35:10

问题描述：

答

11×22+0.22×3300+330×4.4
=11×22+22×33+33×44
=22×（11+33）+33×44
=22×44+33×44
=（22+33）×44
=55×44
=2420