Year 2 - Maths
Represent addition and subtraction facts within 10
Secure fluency of addition and subtraction facts within 10
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This pupil-friendly study guide includes a unit summary, clear notes, common mistakes, and quick questions with answers.
Unit Summary
In this unit pupils will revisit addition and subtraction within ten. They will consolidate addition and subtraction strategies.
Lesson Summary
You will learn to represent addition and subtraction facts within 10.
Key Notes
- Representing a problem can help us to find addition and subtraction facts.
- In addition, we can change the order of the addends and the sum will remain the same.
- We can use addition facts to help us find subtraction facts.
- If I know 3 + 2 = 5, I know that 5 - 2 = 3
Vocabulary To Learn
- 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.
Common Mistakes To Avoid
- Without correct representation, children may struggle to know what to calculate.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Representing a problem can help us to find addition and subtraction facts. In addition, we can change the order of the addends and the sum will remain the same.
2. Use this key word in a maths sentence and explain it clearly. 'Add'
To find the total, or sum, by combining two or more parts (addends), or to increase an amount by adding another. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Without correct representation, children may struggle to know what to calculate. Correction: If needed, provide support at this stage so that the structure of the mathematics is clear to children.
More Lessons In This Unit
Browse all guides in the Year 2 Maths guide library.