# Adding using the column method

## Lesson details

### Key learning points

1. In this lesson, we will use the column method to add two four digit numbers where regrouping is required in one column.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
Mrs Crane has derived some facts from the following equation: 10 + 3 = 13. Which of the following is NOT correct?
100 + 30 = 130
Correct answer: 1000 + 3000 = 4000
110 + 3 = 113
Q2.
Mrs Crane has derived some facts from the following equation: 2 + 3 = 5. Which of the following is NOT correct?
Correct answer: 12 + 30 = 32
20 + 30 = 50
200 + 300 = 500
Q3.
Which is the most efficient strategy to use to solve the following equation: 2432 + 2438
Count on
Partition
Q4.
Which is the most efficient strategy to use to solve the following equation: 5434 - 1996
Count on
Partition
Q5.
Which is the most efficient strategy to use to solve the following equation: 4007 - 3991
Partition

## Exit quiz

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### 5 Questions

Q1.
Which of the following equations is the odd one out because it requires no regrouping?
Correct answer: 2543 + 1233 =
3456 + 2733 =
7653 + 1273 =
Q2.
Which of the following equations is the odd one out because it requires regrouping in the tens column?
Correct answer: 3456 + 2362 =
5621 + 3722 =
7641 + 1533 =
Q3.
My equation is 3242 + 4567 = ... which is the best estimate to make before I calculate my answer?
3000 + 4000 = 7000
Correct answer: 3000 + 5000 = 8000
3200 + 4500 = 7700
Q4.
My equation is 6621 + 2098 = ... which is the best estimate to make before I calculate my answer?
6000 + 2000 = 8000
6600 + 2100 = 8700
Correct answer: 7000 + 2000 = 9000
Q5.
One of the digits in this column addition is missing. What is the missing number?
13
3