3). What is the smallest perfect square greater than 20?

Answer:_________

4). What is the largest perfect square less than 50?

Answer:_________

5). What is the difference of the two largest perfect squares smaller than 100?

Answer:_________

6). What is the cube root (third root) of 27?

Answer:_________

7). What is the fourth root of 16?

Answer:_________

8).

Answer:_________

9).

Answer:_________