2 x 2 = 4 3 x 3 = 9 4 x 4 = 16 5 x 5 = 25 6 x 6 = 36 7 x 7 = 49 8 x 8 = 64 9 x 9 = 81 10 x 10 = 100 11 x 11 = 121 12 x 12 = 144 13 x 13 = 169 14 x 14 = 196 15 x 15 = 225 16 x 16 = 256 17 x 17 = 289 18 x 18 = 324 19 x 19 = 361 20 x 20 = 400 21 x 21 = 441 22 x 22 = 484 23 x 23 = 529 24 x 24 = 576 25 x 25 = 625
