Exploring Integers and Absolute Value

This lesson covers section 2.1 on integers and absolute value. It defines integers as negative or positive whole numbers and explains absolute value as the distance from zero on a number line. The lesson includes examples of representing integers in context, such as below sea level or weight gain, and evaluating absolute values of both negative and positive numbers.

Which of the following is an integer?

• 0.75

• 3.14

• 2

• -1.5

What is the term for negative or positive whole numbers?

• Integers

• Fractions

• Decimals

• Rational Numbers

Which of the following is NOT an integer?

• 4

• -3

• 7.5

• 0

What does absolute value represent?

• The distance from zero

• The negative of the number

• The number itself

• The square of the number

How is absolute value denoted?

• Parentheses

• Brackets

• Two vertical bars

• Curly braces

How would you represent 160 feet below sea level as an integer?

• 160.0

• 0

• -160

• 160

What is the absolute value of -2?

• 4

• 0

• -2

• 2

How would you represent a gain of 15 pounds as an integer?

• -15

• 1.5

• 0

• 15

What is the absolute value of 8?

• 8

• 0

• 16

• -8

What is the absolute value of -8?

• 0

• -8

• 8

• 16