Sunday, February 12, 2012

Divisibility rule for 3

You have to add up the digits in the number, if the sum is divisible by 3
without remainders its divisible by 3!

ex. 1233
1+2+3+3= 9 ÷ 3 = 3

1233 is divisible by 3

1 comment:

  1. That's correct it help me understand it a bit better.

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