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1: Dec 2, 17:22
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3: Dec 2, 08:21
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5: Dec 1, 11:23
6: Nov 30, 15:54
7: Nov 30, 09:41
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Posts: 173
In response to
"
I remember learning that multiples of 9 when you add their digits together = 9 -- (edited)
"
by
Inigo
I learned the 9 one, and the divisible by 3 one, but not your IM about the squares or znu's 7 one. -- nm
Posted by
marum scarum (aka mara)
Oct 29 '21, 07:45
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