1.234×1.234+0.766×0.766+2.468×0.766 简便方法求解

分类: 作业答案 • 2022-05-11 00:28:32

问题描述：

答

1.234×1.234+0.766×0.766+2.468×0.766
= 1.234×1.234+2×1.234×0.766+0.766×0.766
=（1.234+0.766）平方
=2平方
=4