# Subtracting using the column method, when multiple columns require regrouping

In this lesson, we will use the column method to subtract two four digit numbers where regrouping is required in multiple columns.

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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.For the following equation: 5762 - 4031 = ... which is the most appropriate estimate?

1/5

Q2.For the following equation: 8371 - 6124 = ... which is the most appropriate estimate?

2/5

Q3.In the following equation: 8624 - 3711 = ... which column requires regrouping?

3/5

Q4.In the following equation: 6744 - 2481 = ... which column requires regrouping?

4/5

Q5.Mrs Crane has made a mistake in the following calculation. What has she done wrong?

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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
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.For the following equation: 5762 - 4031 = ... which is the most appropriate estimate?

1/5

Q2.For the following equation: 8371 - 6124 = ... which is the most appropriate estimate?

2/5

Q3.In the following equation: 8624 - 3711 = ... which column requires regrouping?

3/5

Q4.In the following equation: 6744 - 2481 = ... which column requires regrouping?

4/5

Q5.Mrs Crane has made a mistake in the following calculation. What has she done wrong?

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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Subtracting using the column method when multiple columns require regrouping

Using what we have learnt today, can you answer the following questions?

Q1.Mrs Crane wants to make an estimate before she calculates her equation. Her equation is 3569 - 2407 = ... Which of the following is the best estimate?

1/5

Q2.Mrs Crane wants to make an estimate before she calculates her equation. Her equation is 3972 - 1963 = ... Which of the following is the best estimate?

2/5

Q3.In this equation: 3792 - 1909 = which two columns require regrouping?

3/5

Q4.In this equation: 9764 - 2589 = which two columns require regrouping?

4/5

Q5.Some of the digits are missing from the equation below. What are the missing digits?

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.

#### Unit quizzes are being retired in August 2023

Why we're removing unit quizzes from the website >
Quiz:

# Subtracting using the column method when multiple columns require regrouping

Using what we have learnt today, can you answer the following questions?

Q1.Mrs Crane wants to make an estimate before she calculates her equation. Her equation is 3569 - 2407 = ... Which of the following is the best estimate?

1/5

Q2.Mrs Crane wants to make an estimate before she calculates her equation. Her equation is 3972 - 1963 = ... Which of the following is the best estimate?

2/5

Q3.In this equation: 3792 - 1909 = which two columns require regrouping?

3/5

Q4.In this equation: 9764 - 2589 = which two columns require regrouping?

4/5

Q5.Some of the digits are missing from the equation below. What are the missing digits?

5/5

# Lesson summary: Subtracting using the column method, when multiple columns require regrouping

## It looks like you have not completed one of the quizzes.

To share your results with your teacher please complete one of the quizzes.

## Time to move!

Did you know that exercise helps your concentration and ability to learn?

For 5 mins...

Move around:
Climb stairs

On the spot:
Chair yoga