7.2×8.12+0.72×8.8简便方法?
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7.2×8.12+0.72×8.8
=0.72×81.2+0.72×8.8
=0.72×(81.2+8.8)
=0.72×90
=64.8
=0.72×81.2+0.72×8.8
=0.72×(81.2+8.8)
=0.72×90
=64.8
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7.2×8.12+0.72×8.8
=7.2×8.12+7.2×0.88
=7.2×(8.12+0.88)
=7.2×9
=64.8
=7.2×8.12+7.2×0.88
=7.2×(8.12+0.88)
=7.2×9
=64.8
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展开全部
7.2×8.12+0.72×8.8
=7.2×8.12+7.2×0.88
=7.2×(8.12+0.88)
=7.2×9
=64.8
=7.2×8.12+7.2×0.88
=7.2×(8.12+0.88)
=7.2×9
=64.8
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已踩过<
评论
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你对这个回答的评价是?
展开全部
7.2×8.12+0.72×8.8
=0.72×81.2+0.72×8.8
=0.72×(81.2+8.8)
=0.72×90
=64.8
=0.72×81.2+0.72×8.8
=0.72×(81.2+8.8)
=0.72×90
=64.8
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
展开全部
7.2×8.12+0.72×8.8
=7.2×8.12+7.2×0.88
=7.2×(8.12+0.88)
=7.2×9
=64.8
=7.2×8.12+7.2×0.88
=7.2×(8.12+0.88)
=7.2×9
=64.8
已赞过
已踩过<
评论
收起
你对这个回答的评价是?
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