Understanding Integers

The video tutorial explains what integers are, describing them as whole numbers that can be positive, negative, or zero. It illustrates the set of integers and how they extend infinitely in both directions on a number line. The tutorial provides examples of integers and contrasts them with non-integers, such as decimals and fractions, emphasizing that integers do not include these types of numbers.

What is an integer?

• A whole number from negative to positive infinity

• A number with a decimal

• A number greater than zero

• A fraction

Which of the following is NOT an integer?

• 245

• 2.5

• 0

• -3

How are integers represented on a number line?

• As numbers with decimals

• As only positive numbers

• As fractions between points

• As points with arrows indicating continuation

Which of the following numbers is an integer?

• 3.5

• 1/2

• -1

• 0.75

Why is 3.5 not considered an integer?

• It is a whole number

• It is a fraction

• It has a decimal

• It is negative

Which of the following is a characteristic of integers?

• They can be decimals

• They can be fractions

• They are whole numbers

• They are only positive