Year 2

Year 2

# Consolidating addition and subtraction of 2-digit numbers

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## Slide deck

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## Lesson details

### Key learning points

1. In this lesson, we will revisit adding and subtracting two 2-digit numbers and exploring mental strategies to help us solve 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.
3 + 2 + 4 = _____
5
7
8
Correct answer: 9
Q2.
4 + 6 + 2 = _____
10
11
Correct answer: 12
8
Q3.
5 + 6 + 4 = _____
11
14
Correct answer: 15
16
Q4.
Seven add two add three is equal to _____
Eleven
Nine
Thirteen
Correct answer: Twelve
Q5.
Nine add one add six is equal to ____
Fifteen
Seventeen
Correct answer: Sixteen
Ten

## Exit quiz

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### 4 Questions

Q1.
What facts help me to know 34 + 52?
3 + 4 = 7
3 + 5 = 8
Correct answer: 4 + 2 = 6
4 + 5 = 9
Q2.
What facts help me to know 89 - 31?
8 - 1 = 7
Correct answer: 8 - 3 = 5
9 - 1 = 8
9 - 3 = 6
Q3.
67 - 32 = _____
Correct answer: 35
39
97
99
Q4.
74 + 15 = _______
69
Correct answer: 89
90
98