278乘以135-278乘以35简便计算
问题描述:
278乘以135-278乘以35简便计算
答
278×(135-35)=278×100=27800
答
=275×(135-35)
=275×100
=27500
答
278乘以135-278乘以35
=278×(135-35)
=278×100
=27800