# Subtracting using the column method

In this lesson, we will learn how to use the column method in order to solve subtraction equations. We will also learn how to represent equations using bar modelling.

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 5

Q1.Why might it be useful to estimate the answer to an equation prior to calculation?

1/5

Q2.2. What is a suitable estimate for the equation: 451 082 + 339 721?

2/5

Q3.3. Use the column method to solve: 289 109 + 463 229 =

3/5

Q4.4. Use the column method to solve: 632 781 + 10 385 =

4/5

Q5.5. Use the column method to solve: 5411 + 1389 + 2013 =

5/5

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 5

Q1.Why might it be useful to estimate the answer to an equation prior to calculation?

1/5

Q2.2. What is a suitable estimate for the equation: 451 082 + 339 721?

2/5

Q3.3. Use the column method to solve: 289 109 + 463 229 =

3/5

Q4.4. Use the column method to solve: 632 781 + 10 385 =

4/5

Q5.5. Use the column method to solve: 5411 + 1389 + 2013 =

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.

Quiz:

# Subtracting using the column method

Quiz to be completed following lesson on: 'Subtracting using the column method'.

## Question 5

Q1.Which equation could be used to estimate the answer to: 653 098 - 118 542?

1/5

Q2.Which columns would require regrouping when column subtracting: 563 357 - 325 129?

2/5

Q3.3. Use the column method to calculate the answer to: 561 998 - 138 422 =

3/5

Q4.4. Use the column method to calculate the answer to: 183 609 - 21 788 =

4/5

Q5.Why might bar modelling be useful?

5/5

Quiz:

# Subtracting using the column method

Quiz to be completed following lesson on: 'Subtracting using the column method'.

## Question 5

Q1.Which equation could be used to estimate the answer to: 653 098 - 118 542?

1/5

Q2.Which columns would require regrouping when column subtracting: 563 357 - 325 129?

2/5

Q3.3. Use the column method to calculate the answer to: 561 998 - 138 422 =

3/5

Q4.4. Use the column method to calculate the answer to: 183 609 - 21 788 =

4/5

Q5.Why might bar modelling be useful?

5/5

# Lesson summary: Subtracting using the column method

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