6.96X9.9+0.695简便方法?
展开全部
6.96*9.9+0.695
=6.96*9.9+0.696-0.001
=6.96*9.9+6.96*0.1-0.001
=6.96*(9.9+0.1)-0.001
=69.6-0.001
=69.599
注:0.696=6.96*0.1
=6.96*9.9+0.696-0.001
=6.96*9.9+6.96*0.1-0.001
=6.96*(9.9+0.1)-0.001
=69.6-0.001
=69.599
注:0.696=6.96*0.1
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展开全部
6.96*9.9+0.695
=6.96*(10-0.1)+0.695
=6.96*10-6.96*0.1+0.695
=69.6-0.696+0.695
=69.6-0.001
=69.599
=6.96*(10-0.1)+0.695
=6.96*10-6.96*0.1+0.695
=69.6-0.696+0.695
=69.6-0.001
=69.599
追答
6.96*9.9+0.695
=6.96*(10-0.1)+0.695
=6.96*10-6.96*0.1+0.695
=69.6-0.696+0.695
=69.6-0.001
=69.599
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你对这个回答的评价是?
展开全部
6.96X9.9+0.695
=6.96X(10-0.1)+0.695
=6.96X10-6.96X0.1+0.695
=69.6-0.696+0.695
=69.6-0.001
=69.599
=6.96X(10-0.1)+0.695
=6.96X10-6.96X0.1+0.695
=69.6-0.696+0.695
=69.6-0.001
=69.599
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
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