# Subtracting 3-digit numbers (regrouping hundreds to tens)

In this lesson, we will focus on column subtraction where regrouping from the hundreds into the tens column is needed.

#### 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.Regrouping is always needed when...

1/5

Q2.Which of these calculations requires regrouping?

2/5

Q3.True or false this questions has been answered correctly? 456 - 147 = 311

3/5

Q4.846 - 227 =

4/5

Q5.Has this question been answered correctly? 526 - 309 = 217

5/5

#### 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.Regrouping is always needed when...

1/5

Q2.Which of these calculations requires regrouping?

2/5

Q3.True or false this questions has been answered correctly? 456 - 147 = 311

3/5

Q4.846 - 227 =

4/5

Q5.Has this question been answered correctly? 526 - 309 = 217

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.

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

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

# Subtracting 3-digit numbers (regrouping hundreds to tens)

Let's see what you have learnt about column subtraction today

Q1.Regrouping means...

1/5

Q2.Which of these calculations requires regrouping?

2/5

Q3.Does this calculation require regrouping?

3/5

Q4.458 - 192 =

4/5

Q5.Is this calculation correct? 520 - 150 = 330

5/5

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

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

# Subtracting 3-digit numbers (regrouping hundreds to tens)

Let's see what you have learnt about column subtraction today

Q1.Regrouping means...

1/5

Q2.Which of these calculations requires regrouping?

2/5

Q3.Does this calculation require regrouping?

3/5

Q4.458 - 192 =

4/5

Q5.Is this calculation correct? 520 - 150 = 330

5/5

# Lesson summary: Subtracting 3-digit numbers (regrouping hundreds to tens)

## 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