what are all the square numbers from 301 to 400?

324 (18^2)
361 (19^2)
400 (20^2)

The square numbers between 301 and 400 are: 324, 361 and 400.

do you thing is it difficult?

18*18 = 324

19*19 = 361

20*20 = 400

Square numbers from 301 to 400:
18^2 = 18 x 18 = 324
19^2 = 19 x 19 = 361
20^2 = 20 x 20 = 400

18² = 324
19² = 361
20² = 400

18, 19, 20

you can find them yourself by squaring all the numbers from 15 to 20, then picking the ones in your range