7.2×8.12+0.72×8.8简便方法?
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=7.2×8.12+7.2×0.88
=7.2×(8.12+0.88)
=7.2×9
=64.8
=7.2×(8.12+0.88)
=7.2×9
=64.8
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展开全部
=0.72*81.2+0.72*8.8
=0.72(81.2+8.8)
=0.72*90
=64.8
=0.72(81.2+8.8)
=0.72*90
=64.8
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展开全部
7.2x8.12+0.72x8.8
=7.2x(8.12+0.88)
=7.2x9
=64.8
=7.2x(8.12+0.88)
=7.2x9
=64.8
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原式=7.2*(8.12+0.88)
=8.2*9
=8.2*(10–1)
=82–8.2
=73.8
=8.2*9
=8.2*(10–1)
=82–8.2
=73.8
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展开全部
=7.2×8.12+7.2×0.88
=7.2×(8.12+0.88)
=7.2×9
=64.8
=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?
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