3.63.14+43.96.4 简便运算

分类: 作业答案 • 2022-05-07 15:10:35

问题描述：

3.6*3.14+43.9*6.4 简便运算

答

3.6*3.14+43.9*6.4
=(10-6.4)*3.14+43.9*6.4
=31.4+(43.9-3.14)*6.4
=31.4+40.76*6.4
=31.4+260.846
=292.264

3.6*3.14+43.9*6.4 简便运算