8.72*1.48+3.8*1.28+8.72*2.32简算
问题描述:
8.72*1.48+3.8*1.28+8.72*2.32简算
答
8.72*1.48+3.8*1.28+8.72*2.32
=8.72*(1.48+2.32)+3.8*1.28
=8.72*3.8+3.8*1.28
=3.8*(8.72+1.28)
=3.8*10
=38