Square Numbers
1 x 1 = 1 1 is a square number
2 x 2 = 4 4 is a square number
3 x 3 = 9 9 is a square number
4 x 4 = 16 16 is a square number
5 x 5 = 25 25 is a square number
6 x 6 = 36 36 is a square number
7 x 7 = 49 49 is a square number
8 x 8 = 64 64 is a square number
9 x 9 = 81 81 is a square number
10 x 10 = 100 100 is a square number
11 x 11 = 121 121 is a square number
12 x 12 = 144 144 is a square number
13 x 13 = 169 169 is a square number
14 x 14 = 196 196 is a square number
15 x 15 = 225 225 is a square number