There are total 11 perfect squares between 10 to 200, which are 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196 :)
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1,4,9,16,25,36,49,64,81,100,121,144,169,196.
225 (15 squared)256 (16 squared)289 (17 squared)324 (18 squared)
Only 15^2 falls between 200 and 250.15^2 = 225.
300
If you don't specify the size of the squares, we can't give an accurate answer. There are 400 one-unit squares and 200 two-unit squares and 4 ten-unit squares and so on.