0.12乘2.5加0.25乘8.8 简便计算

分类: 作业答案 • 2022-09-26 17:34:37

问题描述：

答

0.12乘2.5加0.25乘8.8
=0.12乘2.5加2.5乘0.88
=（0.12+0.88）×2.5
=1×2.5
=2.5

答

看做1.2乘0.25 加 0.25乘8.8
提出0.25,1.2和8.8加等于10
结果是2.5

答

0.12*2.5+0.25*8.8
=1.2*0.25+8.8*0.25
=0.25*(1.2+8.8)
=0.25*10
=2.5

答

0.12*2.5+0.25*8.8
=1.2*0.25+0.25*8.8
=0.25*（1.2*8.8）
=0.25*10
=2.5