# Adding and subtracting using partitioning

In this lesson, we will use partitioning to add and subtract large integers, both where regrouping is required and where it is not needed.

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.

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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.What is the 'round and adjust' strategy?

1/5

Q2.Use 'rounding and adjusting' to solve: 53 700 + 3998 =

2/5

Q3.Use 'rounding and adjusting' to solve: 6880 - 2990 =

3/5

Q4.Use 'rounding and adjusting' to solve: 17 456 + 1980 =

4/5

Q5.Use 'rounding and adjusting' to solve: 215 678 + 3800 =

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.What is the 'round and adjust' strategy?

1/5

Q2.Use 'rounding and adjusting' to solve: 53 700 + 3998 =

2/5

Q3.Use 'rounding and adjusting' to solve: 6880 - 2990 =

3/5

Q4.Use 'rounding and adjusting' to solve: 17 456 + 1980 =

4/5

Q5.Use 'rounding and adjusting' to solve: 215 678 + 3800 =

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

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# 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:

# Adding and subtracting using partitioning

Quiz to be completed following lesson on: 'Adding and subtracting using partitioning'.

Q1.Which equation demonstrates how the number 346 000 can be partitioned?

1/5

Q2.Use partitioning to solve the equation: 723 000 + 15 000 =

2/5

Q3.Use partitioning to solve the equation: 456 000 - 132 000 =

3/5

Q4.Use partitioning to solve the equation: 158 000 + 26 000 =

4/5

Q5.Use partitioning to solve the equation: 738 000 - 156 000 =

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:

# Adding and subtracting using partitioning

Quiz to be completed following lesson on: 'Adding and subtracting using partitioning'.

Q1.Which equation demonstrates how the number 346 000 can be partitioned?

1/5

Q2.Use partitioning to solve the equation: 723 000 + 15 000 =

2/5

Q3.Use partitioning to solve the equation: 456 000 - 132 000 =

3/5

Q4.Use partitioning to solve the equation: 158 000 + 26 000 =

4/5

Q5.Use partitioning to solve the equation: 738 000 - 156 000 =

5/5

# Lesson summary: Adding and subtracting using partitioning

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## Time to move!

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