# Subtracting negative Numbers

In this lesson you will explore subtracting negative numbers as the addition of the additive inverse.

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

## Question 7

Q1.Fill in the gap: Two numbers are additive inverses if their sum is _____.

1/7

Q2.Which words (in order) best complete this sentence: __________________________ can be viewed as the addition of the ____________________________.

2/7

Q3.Which numbers best complete this number sentence in order: 9 - ___ = 9 + ___ = 4

3/7

Q4.Select the calculation that could be represented by this diagram.

Select one (1) boxes

4/7

Q5.Calculate 2-5

5/7

Q6.Calculate (-2)-5

6/7

Q7.Calculate (-2) + (-5)

7/7

Quiz:

# Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

## Question 7

Q1.Fill in the gap: Two numbers are additive inverses if their sum is _____.

1/7

Q2.Which words (in order) best complete this sentence: __________________________ can be viewed as the addition of the ____________________________.

2/7

Q3.Which numbers best complete this number sentence in order: 9 - ___ = 9 + ___ = 4

3/7

Q4.Select the calculation that could be represented by this diagram.

Select one (1) boxes

4/7

Q5.Calculate 2-5

5/7

Q6.Calculate (-2)-5

6/7

Q7.Calculate (-2) + (-5)

7/7

# Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

• Click "Close Video"
• Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

# Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

Quiz:

# Subtracting Negative Numbers Quiz

Have a go at the questions below!

## Question 5

Q1.Which word best completes the gap: -14 and 14 are additive inverses as they sum to ____

1/5

Q2.Which words (in order) best complete this sentence: __________________________ can be viewed as the ________________________ of the additive inverse.

2/5

Q3.Complete the gap: -3 - (-5) = (-3) + _____

3/5

Q4.Which calculation gives the smallest answer?

4/5

Q5.Which calculation gives the largest answer?

5/5

Quiz:

# Subtracting Negative Numbers Quiz

Have a go at the questions below!

## Question 5

Q1.Which word best completes the gap: -14 and 14 are additive inverses as they sum to ____

1/5

Q2.Which words (in order) best complete this sentence: __________________________ can be viewed as the ________________________ of the additive inverse.

2/5

Q3.Complete the gap: -3 - (-5) = (-3) + _____

3/5

Q4.Which calculation gives the smallest answer?

4/5

Q5.Which calculation gives the largest answer?

5/5

# Lesson summary: Subtracting negative Numbers

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