0.2X4.99+0.2简便方法？
7个回答
展开全部
0.2×4.99+0.2
=0.2×(4.99+1)
=0.2×5.99
=0.2×6-0.2×0.01
=1.2-0.002
=1.198
=0.2×(4.99+1)
=0.2×5.99
=0.2×6-0.2×0.01
=1.2-0.002
=1.198
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展开全部
0.2x4.99+0.2
=0.2x(4.99+1)
=0.2x5.99
=0.2X6-0.2x0.01
=1.2-0.002
=1.198
=0.2x(4.99+1)
=0.2x5.99
=0.2X6-0.2x0.01
=1.2-0.002
=1.198
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
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