# Adding using the column method

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## Lesson details

### Key learning points

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

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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.

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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

110 + 3 = 113

Q2.

Mrs Crane has derived some facts from the following equation: 2 + 3 = 5. Which of the following is NOT correct?

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

Round and adjust

### 5 Questions

Q1.

Which of the following equations is the odd one out because it requires no regrouping?

3456 + 2733 =

7653 + 1273 =

Q2.

Which of the following equations is the odd one out because it requires regrouping in the tens column?

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

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

Q5.

One of the digits in this column addition is missing. What is the missing number?

13

3