2.02×8.5=?1.25＋4.6＋0.75=?递等式计算、要简便哦!

分类: 作业答案 • 2021-12-03 13:33:06

问题描述：

答

2.02*8.5 1.25＋4.6＋0.75
=(2+0.02)*8.5 =(1.25+0.75)+4.6
=2*8.5+0.02*8.5 =2+4.6
=17+0.17 =6.6
=17.17