2.09×5.1能简便计算吗
6个回答
展开全部
2.09×5.1能简便计算
2.09×5.1
=2.09×(5+0.1)
=2.09×5+2.09×0.1
=10.45+0.209
=10.659
2.09×5.1
=2.09×(5+0.1)
=2.09×5+2.09×0.1
=10.45+0.209
=10.659
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
2.09×5.1
=2.09×(5+0.1)
=2.09×5+2.09×0.1
=(2+0.09)×5+0.209
=2×5+0.09×5+0.209
=10+0.45+0.209
=10.45+0.209
=10.659
=2.09×(5+0.1)
=2.09×5+2.09×0.1
=(2+0.09)×5+0.209
=2×5+0.09×5+0.209
=10+0.45+0.209
=10.45+0.209
=10.659
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
2.09ⅹ5.1
=2.09ⅹ(5+0.1)
=2.09ⅹ5+2.09ⅹ0.1
=10.45+2.09ⅹ0.1
=10.45+0.209
=10.659
=2.09ⅹ(5+0.1)
=2.09ⅹ5+2.09ⅹ0.1
=10.45+2.09ⅹ0.1
=10.45+0.209
=10.659
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
把2.09拆分成2+0.09。等式就转化为
=(2+0.09)*5.1
= 10.2+0.459
= 10.659
=(2+0.09)*5.1
= 10.2+0.459
= 10.659
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