2.9乘0.45加0.29乘4.2加0.029乘13
2个回答
展开全部
方法一:2.9x0.45+0.29x4.2+0.029x13
=1.305+1.218+0.337
=2.9
方法二:2.9x0.45+0.29x4.2+0.029x13
=2.9x0.45+2.9x0.42+2.9x0.13
=2.9x(0.45+0.42+0.13)
=2.9x1
=2.9
=1.305+1.218+0.337
=2.9
方法二:2.9x0.45+0.29x4.2+0.029x13
=2.9x0.45+2.9x0.42+2.9x0.13
=2.9x(0.45+0.42+0.13)
=2.9x1
=2.9
本回答被提问者采纳
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