3.28*1.79-7.9*0.328能简算吗
问题描述:
3.28*1.79-7.9*0.328能简算吗
答
3.28*1.79-7.9*0.328
=3.28*1.79-0.79*3.28
=(1.79-0.79)*3.28
=1*3.28
=3.28
答
貌似不能
答
3.28*1.79-7.9*0.328
=0.328*10*1.79-0.328*7.9
=0.328*(17.9-7.9)
=0.328*10
=3.28