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Gitel in nj
04-11-2011, 04:47 PM
Very :cool: math tricks :thumb:

How to tell if a number is divisible by 2 or 3 (http://mathdude.quickanddirtytips.com/how-to-tell-if-a-number-is-divisible-by-2-or-3.aspx)?

How to tell if a number is divisible by 4, 5 or 6? (http://http://mathdude.quickanddirtytips.com/how-to-tell-if-a-number-is-divisible-by-4-5-or-6.aspx)

How to tell if a number is divisible by 7, 8 or 9? (http://mathdude.quickanddirtytips.com/how-to-tell-if-a-number-is-divisible-by-7-8-or-9.aspx)

CJ
04-11-2011, 07:52 PM
Thank you for posting these. I knew they were out there, but had forgotten these tricks and I was meaning to look them up again.

You saved me time!
:D