2.9x9.9十0.29的简便运算0.96x2.5?
3个回答
展开全部
2.9×9.9+0.29
=2.9×9.9+2.9×0.1 ............改写
=2.9×(9.9+0.1) ...........乘法的分配律
=2.9×10
=29
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
2.9×9.9+0.29
=0.29×99+0.29×1
=0.29×(99+1)
=0.29×100
=29
0.96×2.5
=0.24×4×2.5
=0.24×10
=2.4
=0.29×99+0.29×1
=0.29×(99+1)
=0.29×100
=29
0.96×2.5
=0.24×4×2.5
=0.24×10
=2.4
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