77/100×101-77/100简算
问题描述:
77/100×101-77/100简算
答
77/100×101-77/100=77/100×(101-1)=77/100×100=77
答
77/100×101-77/100=
77/100×(101-1)=
77/100×100=77
答
=77/100×(101-1)
=77/100×100
=77