0.89*4.8+0.89*5.1+0.089怎么简算要简算

问题描述:

0.89*4.8+0.89*5.1+0.089怎么简算
要简算

0.89*4.8+0.89*5.1+0.089
=0.89*4.8+0.89*5.1+0.89*0.1
=0.89*(4.8+5.1+0.1)
=0.89*10
=8.9