perfect squares between 100 and 500
There are 12 perfect squares between 100 and 500: 11 11 = 121 12 12 = 144 13 13 = 169 14 14 = 196 15 15 = 225 16 16 = 256 17 17 = 289 18 18 = 324 19 19 = 361 20 20 = 400 21 21 = 441 22 22 = 484