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:_________