2.9×0.45+2.9×0.54+2.9的简便计算怎么算?
3个回答
展开全部
=2.9*(0.45+0.54+1)
=2.9*1.99
=2.9*(2-0.01)
=2.9*2-2.9*0.01
=5.8-0.029
=5.771
=2.9*1.99
=2.9*(2-0.01)
=2.9*2-2.9*0.01
=5.8-0.029
=5.771
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
2.9×0.45+2.9×0.54+2.9
=2.9×(0.45+0.54)+2.9
=2.9×0.99+2.9
=2.9×1一2.9×0.01+2.9
=2.9+2.9一0.029
=5.8一0.029
=5.771
=2.9×(0.45+0.54)+2.9
=2.9×0.99+2.9
=2.9×1一2.9×0.01+2.9
=2.9+2.9一0.029
=5.8一0.029
=5.771
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
有公因子,先提前出来再计算简单一点
=2.9×(0.45+0.54+1)
=5.771
=2.9×(0.45+0.54+1)
=5.771
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