What do you get when you combine opposite quantities?

10 + (-10) = ?

For example:

In this lesson, you will learn the additive inverse by combining

opposite quantities.

Let’s ReviewLet’s Review

Absolute Value is a number’s distance from zero.

| -3 | = 3

-3

Let’s ReviewLet’s Review

Opposite Numbers have the same absolute value.

| 3 | = 3 | -3 | = 3

-3 +3

Let’s ReviewCore Lesson

I earn = +$10

I spend = -$10

Let’s ReviewCore Lesson

Earned $10

Spent -$10

$0 $10

$0

10 (-10) = 0 +

Let’s ReviewCore Lesson

5

If I walk forward 5 steps, but then walk backwards 5 steps, where am I?

(-5) = 0 +

Let’s ReviewCore Lesson

10 + (-10) =

-15 + 15 =

Two numbers that can be added together to get zero are called an

Additive Inverse.

0

0

In this lesson, you have learned about the additive

inverse by combining opposite quantities.

Let’s ReviewGuided Practice

What number can be inserted to show the additive inverse?

9 + = 0 (-9)

Let’s ReviewExtension Activities

Complete the adding tree:

33

+

+

+

+

-33

-1717

Let’s ReviewQuick Quiz

Two numbers that can be added together to get zero are called an

What number needs to be inserted to make the statement true?

-3 + 5 + 3 + = 0