Year 4

Year 4

## Lesson details

### Key learning points

1. In this lesson, we will look at addition equations and decide the best and most efficient strategy we could use to solve them.

### 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.
What's the same? What's different? 364 + 302 = 666 and 374 + 302 = 676
1 part has decreased by 10
Correct answer: 1 part has increased by 10
1 part has increased by 100
Q2.
What's the same? What's different? 764 - 204 = 560 and 754 - 204 = 550
Correct answer: 1 part has decreased by 10
1 part has decreased by 100
1 part has increased by 10
Q3.
What's the same? What's different? 3672 + 1474 = 5146 and 3972 + 1474 = 5446
1 part has decreased by 300
1 part has increased by 30
Correct answer: 1 part has increased by 300
Q4.
If... 362 + 205 = 567 then... 262 + 205 = ?
667
67
Q5.
If... 751 - 303 = 448 then... 741 - 303 = ?
458
48

## Exit quiz

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### 5 Questions

Q1.
Mrs Crane is using the strategy near doubles to solve the following equation: 3014 + 3007 = ... Which of the following near doubles should she use to help her calculate the answer?
3100 + 3100
4000 + 4000
Q2.
Mrs Crane is using the strategy near doubles to solve the following equation: 4136 + 4122 = ... Which of the following near doubles should she use to help her calculate the answer?
4000 + 4000
4200 + 4200
Q3.
Mrs Crane is using the strategy round and adjust to solve the following: 4543 + 3003 = ... Which of the numbers in the equation should she use to round and adjust?