This is a timed quiz.
You have 2 minutes to complete the 4 questions in this quiz.
Which of the following is not an integer?
-8
4
-20
2.5
Which of the following cannot be represented as an integer?
\[\sqrt{36}\]
\[\sqrt{18}\]
\[\sqrt{49}\]
\[\sqrt{1}\]
Check all of the following that are integers less than 5.
3
9
0
-4
-1
True or False? The number zero is an integer.