New
New
Year 2

# Represent addition and subtraction facts within 10

I can represent addition and subtraction facts within 10

New
New
Year 2

# Represent addition and subtraction facts within 10

I can represent addition and subtraction facts within 10

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## Lesson details

### Key learning points

1. Representing a problem can help us to find addition and subtraction facts.
2. In addition, we can change the order of the addends and the sum will remain the same.
3. We can use addition facts to help us find subtraction facts.
4. If I know 3 + 2 = 5, I know that 5 - 2 = 3

### Common misconception

Without correct representation, children may struggle to know what to calculate.

If needed, provide support at this stage so that the structure of the mathematics is clear to children.

### Keywords

• Add - To find the total, or sum, by combining two or more parts (addends), or to increase an amount by adding another.

• Subtract - To partition one part from another (the subtrahend from the difference), or to decrease an amount by taking an amount away.

• Represent - To communicate mathematical ideas through models.

### Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

## Starter quiz

### 6 Questions

Q1.
What number is being represented?
4
5
7
Q2.
Which representation shows 9?
Correct Answer: An image in a quiz
Q3.
Which number line is representing 5 and 2 more?
Correct Answer: An image in a quiz
Q4.
Which bar model is showing 3 + 4 = 7?
Correct Answer: An image in a quiz
Q5.
Aisha earned 4 stickers in the morning and 2 stickers in the afternoon. How many stickers did she earn altogether?
Q6.
There were 6 children at the park. 3 went home for tea. How many children are left at the park?

## Exit quiz

### 6 Questions

Q1.
Correct Answer: An image in a quiz
Q2.
Correct Answer: An image in a quiz
Q3.
Which number shown on the dice is missing from the bar model?
Correct Answer: An image in a quiz
Q4.
Which pair of dice could be the parts in this bar model?
Correct Answer: An image in a quiz
Q5.
What is the missing number?
5