1 + 1 = 2
2 + 2 = 4
3 + 3 = 6
4 + 4 = 8
5 + 5 = 10
6 + 6 = 12
7 + 7 = 14
8 + 8 = 16
9 + 9 = 18
10 + 10 =20
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Any number that can be divided in two is an even number 0, 2, 4, 6, 8. Any number that can't be divided by two is an odd number. ...
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