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Wednesday 30 November 2011

Counting by Threes

Counting by Threes
You can count by three's by adding three to the previous number.
The numbers that you would count if you started with 0 and counted by threes would be:
0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and so on.
The numbers that you would count if you started with 1 and counted by threes would be:
1, 4, 7, 10, 13, 16, 19, 22, 25, 28, 31, 34 and so on.

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