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3 2=7, 5 4=23, 7 6=47, 9 8=79, 10 9=?
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3 2=7, 5 4=23, 7 6=47, 9 8=79, 10 9=?

User Trevor Robinson
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3x2=6+1, 5x4=20+3, 7x6=42+5, 9x8=72+7, 10x9=90+?. Well it looks like the pattern is counting in odd numbers so I would say ?=9 so 10x9=90+9=99 :) hope this helps
User Vincentzhou
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