用简便方法计算35×55 75×55-55×10
2个回答
展开全部
35×55
=35x(50+5)
=35x50+35x5
=1750+175
=1925
75×55-55×10
=(75-10)x55
=65x55
=65x(50+5)
=65x50+65x5
=3250+325
=6575
=35x(50+5)
=35x50+35x5
=1750+175
=1925
75×55-55×10
=(75-10)x55
=65x55
=65x(50+5)
=65x50+65x5
=3250+325
=6575
追答
发过去了,望采纳
本回答被网友采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询