1、(0.43-0.043)*822、8.8/2.5

问题描述:

1、(0.43-0.043)*82
2、8.8/2.5

第一道化成分数
第二化成(8+0.8)*2/5

1. (43-4.3)*0.82=31.734
2. 8.8*4/2.5*4=3.52

(0.43-0.043)*82
=0.387*82
=31.734
8.8/2.5
=8.8/(5/2)
=8.8*(2/5)
=8.8*0.4
=3.52

kfg
576
878

(0.43-0.043)*82
=(0.043*10-0.043)*82
=0.043*9*82
=31.734

8.8/2.5
=(8.8*4)/(2.5*4)
=35.2/10
=3.52