5.4x2.08＋66x0.208-2.08怎样简便计算

分类: 作业答案 • 2022-01-24 00:15:04

问题描述：

答

5.4x2.08+66x0.208-2.08
=5.4×2.08+6.6×2.08-2.08×1
=（5.4+6.6-1）×2.08
=11×2.08
=2.08×10+2.08
=20.8+2.08
=22.88