Adding two 3-digit numbers (regrouping in multiple columns)

In this lesson, we will look at using column addition when a number requires regrouping in more than one column when adding.

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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!

Q1.89 + 5 =

1/5

Q2.Which of these calculations requires regrouping?

2/5

Q3.105 + 106 =

3/5

Q4.234 + 372 =

4/5

Q5.520 + 634 =

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!

Q1.89 + 5 =

1/5

Q2.Which of these calculations requires regrouping?

2/5

Q3.105 + 106 =

3/5

Q4.234 + 372 =

4/5

Q5.520 + 634 =

5/5

Video

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Worksheet

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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 Two 3-Digit Numbers (Regrouping in More Than One Column) Quiz

Let's see what you have learnt about using column addition to add where you need to regroup in more than one column

Q1.True or false, this calculation needs some regrouping? 54 + 23 =

1/5

Q2.Which of these calculation needs regrouping?

2/5

Q3.555 + 555 =

3/5

Q4.456 + 269 =

4/5

Q5.Check this answer - is it correct? 596 + 122 = 6118

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 Two 3-Digit Numbers (Regrouping in More Than One Column) Quiz

Let's see what you have learnt about using column addition to add where you need to regroup in more than one column

Q1.True or false, this calculation needs some regrouping? 54 + 23 =

1/5

Q2.Which of these calculation needs regrouping?

2/5

Q3.555 + 555 =

3/5

Q4.456 + 269 =

4/5

Q5.Check this answer - is it correct? 596 + 122 = 6118

5/5

Lesson summary: Adding two 3-digit numbers (regrouping in multiple columns)

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