0.32×4.5+20.8÷3.2简便计算？
2个回答
展开全部
0.32×4.5+20.8÷3.2的简便计算过程：
0.32×4.5+20.8÷3.2
=0.32×4.5+20.8÷3.2
=(0.30+0.02)×4.5+20.8÷(1.6x2)
=0.3x4.5+0.02x4.5+20.8÷1.6÷2
=1.35+0.009+13÷2
=1.35+0.009+6.5
=7.859
0.32×4.5+20.8÷3.2
=0.32×4.5+20.8÷3.2
=(0.30+0.02)×4.5+20.8÷(1.6x2)
=0.3x4.5+0.02x4.5+20.8÷1.6÷2
=1.35+0.009+13÷2
=1.35+0.009+6.5
=7.859
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
展开全部
0.32×4.5十20.8÷3.2
=0.16×9十5.2÷0.8
=1.44十1.3÷0.2
=1.44十13÷2
=1.44十6.6
=8.04
=0.16×9十5.2÷0.8
=1.44十1.3÷0.2
=1.44十13÷2
=1.44十6.6
=8.04
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
