Year 4

Year 4

# Subtracting using the column method

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## Lesson details

### Key learning points

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

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## Video

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## Worksheet

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## Starter quiz

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### 5 Questions

Q1.
My equation is 4586 + 4815 = ... which is the best estimate to make before I calculate my answer?
4000 + 4000 = 8000
4500 + 4800 = 9300
Correct answer: 5000 + 5000 = 10,000
Q2.
My equation is 5592 + 1564 = ... which is the best estimate to make before I calculate my answer?
5000 + 2000 = 7000
6000 + 1000 = 7000
Correct answer: 6000 + 2000 = 8000
Q3.
From the following equations, which equation requires regrouping in TWO columns?
2472 + 3361
4408 + 3701
Q4.
From the following equations, which equation requires regrouping in the tens and hundreds column?
2631 + 5643
4408 + 3701
Q5.
One of the digits in this column addition is missing, what is the missing digit?
0
3

## Exit quiz

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### 5 Questions

Q1.
For the following equation: 5762 - 4031 = ... which is the most appropriate estimate?
5000 - 4000 = 1000
5700 - 4000 = 1700
Correct answer: 6000 - 4000 = 2000
Q2.
For the following equation: 8371 - 6124 = ... which is the most appropriate estimate?
Correct answer: 8000 - 6000 = 2000
8400 - 6100 = 2300
9000 - 6000 = 3000
Q3.
In the following equation: 8624 - 3711 = ... which column requires regrouping?