4.9×7+9×4.9+4.9简便运算
2017-09-07 · 知道合伙人教育行家
关注
展开全部
4.9×7+9×4.9+4.9简便运算
=4.9x(7+9+1)
=(5-0.1)x17
=5x17-0.1x17
=85-1.7
=83.3
=4.9x(7+9+1)
=(5-0.1)x17
=5x17-0.1x17
=85-1.7
=83.3
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
4.9×7+9×4.9+4.9
=4.9×7+4.9×9+4.9×1
=4.9×(7+9+1)
=4.9×17
=(5-0.1)×17
=5×17-0.1×17
=85-1.7
=83.3
=4.9×7+4.9×9+4.9×1
=4.9×(7+9+1)
=4.9×17
=(5-0.1)×17
=5×17-0.1×17
=85-1.7
=83.3
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