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Edgar Knight
Mathematics
18 July, 17:17
Find the missing numbers 3,__,__,12__,__,21
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Moises Riley
18 July, 17:35
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Theres a differnece of 9 between 12 and 3 and also between 12 and 21
looks like an arithmetic series with common difference = 3
so the ful series is
3,6,9,12,15,18,21
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Marcel Lucero
18 July, 17:41
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Multiples of 3
3 6 9 12 15 18 21
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