3.42乘76.3加57.6乘7.63加91.8乘2.3.7怎么算,要简便运算,急!谢谢大家啦!

分类: 作业答案 • 2021-12-19 19:32:27

问题描述：

答

3.42乘76.3加57.6乘7.63加91.8乘2.3.7
=7.63x(34.2+57.6)+91.8x2.37
=7.63x91.8+91.8x2.37
=(7.63+2.37)x91.8
=10x91.8
=918