1.7*0.31+17*6.9的简便算法
展开全部
=17*0.031+17*6.9
=17*(0.031+6.9)
=(10+7)*(6+0.9+0.03+0.001)
=60+9+0.3+0.01+42+6.3+0.21+0.007
=60+9+0.3+0.01+40+2+6+0.3+0.2+0.01+0.007
=100+17+0.8+0.02+0.007
=117.827
=17*(0.031+6.9)
=(10+7)*(6+0.9+0.03+0.001)
=60+9+0.3+0.01+42+6.3+0.21+0.007
=60+9+0.3+0.01+40+2+6+0.3+0.2+0.01+0.007
=100+17+0.8+0.02+0.007
=117.827
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
