Chapter 1‎ > ‎

1.1 Even and Odd Numbers

http://www.mathsisfun.com/numbers/even-odd.html
http://www.mathnook.com/math/mathpuppiesoddeven.html
https://www.youtube.com/watch?v=k1Ir4oeMdpA
https://www.youtube.com/watch?v=hMSd7wGuTT4
http://www.sheppardsoftware.com/mathgames/monkeydrive/numbers/MDOddEven.htm

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