2.19*625+(10-7.81)*3.75[简算]求大神帮助

问题描述:

2.19*625+(10-7.81)*3.75[简算]求大神帮助

2.19*625+(10-7.81)*3.75 =2.19*625+2.19*3.75 =2.19*(625-3.75) =2.19*621.25 =1360.5375