Question

Select all that apply.

Which numbers are not perfect squares?

25
20
18
36
16
14
24

Answer 1

20

18

14

24

Are not perfect squares

Explanation:

3*3=9

4*4=16

5*5=25

6*6=36

Answer 2

You might want to make your own table of perfect squares, as folows:

x x^2
---- ------
3 9
4 16
5 25
6 36
7 49

\Now look at the given list:
25
20
18
36
16
14
24
Reject all of these that are not on your list of perfect squares.