Subtract directed numbers

In this lesson, we will recap subtracting directed (+ -) numbers using visual representations such as double sided counters to aid understanding.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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!

Q1.Which calculation do these counters represent?

1/5

Q2.Calculate -4 + 7

2/5

Q3.Evaluate 4 + -7

3/5

Q4.Work out -4 + -7

4/5

Q5.Find the Missing number

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

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!

Q1.Which calculation do these counters represent?

1/5

Q2.Calculate -4 + 7

2/5

Q3.Evaluate 4 + -7

3/5

Q4.Work out -4 + -7

4/5

Q5.Find the Missing number

5/5

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.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Subtract directed numbers

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Which 'calculation' do the counters represent?

1/5

Q2.Calculate - 2 - 7

2/5

Q3.Calculate - 2 - - 7

3/5

Q4.What is the difference in temperature between Newcastle and Capetown?

4/5

Q5.Find the missing number

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Subtract directed numbers

Don’t worry if you get a question wrong! Forgetting is an important step in learning. We will recap next lesson.

Q1.Which 'calculation' do the counters represent?

1/5

Q2.Calculate - 2 - 7

2/5

Q3.Calculate - 2 - - 7

3/5

Q4.What is the difference in temperature between Newcastle and Capetown?

4/5

Q5.Find the missing number

5/5

Lesson summary: Subtract directed numbers

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