4.9×12-49×0.2简便计算?
3个回答
展开全部
4.9×12-49×0.2
=4.9×12-4.9×10×0.2
=4.9×(12-10×0.2)
=4.9×10
=49
=4.9×12-4.9×10×0.2
=4.9×(12-10×0.2)
=4.9×10
=49
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
4.9×12-49×0.2
=4.9×12-4.9×10×0.2
=4.9×(12-10×0.2)
=4.9×10
=49
=4.9×12-4.9×10×0.2
=4.9×(12-10×0.2)
=4.9×10
=49
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
=49×1.2-49×0.2
=49×(1.2-0.2)
=49×1
=49
=49×(1.2-0.2)
=49×1
=49
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