Year 4

Year 4

# Representing comparison word problems

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## Lesson details

### Key learning points

1. In this lesson, we will use comparison bar models to represent addition and subtraction in one-step word problems.

### 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.
Which is the correct inverse equation for the following equation: 3562 + 3752 = 7314
3752 - 3562 = 7314
Correct answer: 7314 - 3562 = 3752
Q2.
Which is the correct inverse equation for the following equation: 7659 - 3572 = 4085
Correct answer: 3572 + 4087 = 7659
4087 - 3572 = 515
Q3.
What is known in the following bar model?
Both parts
Correct answer: Whole and a part
Q4.
What is known in the following bar model?
Both parts
Correct answer: Whole and a part
Q5.
Which of the following equations represents the following bar model?
Correct answer: 3795 - 2534 = ?
3795 + 2534 = ?

## Exit quiz

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### 5 Questions

Q1.
Which is the appropriate inverse equation for the following equation: 3741 - 2604 = 1137
Correct answer: 1137 + 2604 = 3741
3741 + 2604 = 6345
Q2.
Which is the appropriate inverse equation for the following equation: 4289 + 2791 = 7080
Correct answer: 7080 - 4289 = 2791
7080 + 2791 = 9871
Q3.
Which is the appropriate inverse equation for the following equation: 2309 + 709 = 3018
Correct answer: 3018 - 709 = 2309
709 + 2309 = 3018
Q4.
From the following word problem, what is the equation: Visitors to the Notre Dame cathedral were recorded for Tuesday and Wednesday. Wednesday had 1123 more visitors than on Tuesday. If Tuesday had 1125 visitors, how many were there on Wednesday?
Correct answer: 1123 + 1125 = ?
1125 - 1123 = ?
Q5.
For the following word problem, what is the equation: A restaurant had 4762 diners in June. In July they had 2345 more diners than in June. How many diners did the restaurant have in July?
4762 - 2345 = ?
Correct answer: 4762 + 2345 = ?