The video tutorial explains what integers are, defining them as whole numbers that can be positive or negative. It then evaluates several answer choices to determine which are integers, concluding that 24.5 is not an integer because it includes a decimal, which does not meet the criteria of a whole number.

What is an integer?

• A decimal number

• A whole number that can be positive or negative

• A number that is always positive

• A fraction

Which of the following is a whole number?

• 17.5

• 24.5

• 28

• 0.5

Which of these numbers is a negative integer?

• 0.5

• 24.5

• 17

• -5

Why is 24.5 not considered an integer?

• Because it is a fraction

• Because it is a decimal

• Because it is a positive number

• Because it is a negative number

Which of the following is not an integer?

• 24.5

• -5

• 28

• 17