Year 3 - Maths
Identify the addends and the sum in column addition
Column addition
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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 identify the addends and the sum in column addition. They will use their knowledge of place value to correctly lay out column addition.
Lesson Summary
You will learn to identify the addends and the sum in column addition.
Key Notes
- In column addition, one addend is written below the other.
- The equals sign shows it is an equation.
- The sum appears within the equals sign.
Vocabulary To Learn
- Addend: An addend is a number added to another.
- Sum: The sum is the total when numbers are added together.
- Equation: An equation shows that one number or calculation is equal to another.
- Column addition: Column addition is a way of adding numbers by writing a number below another.
Common Mistakes To Avoid
- Pupils may struggle to find the parts and the whole in column addition.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
In column addition, one addend is written below the other. The equals sign shows it is an equation.
2. Use this key word in a maths sentence and explain it clearly. 'Addend'
An addend is a number added to another. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Pupils may struggle to find the parts and the whole in column addition. Correction: Emphasise the sum as being within the 'equals' sign in column addition. Take time to write equations, bar models and column addition and make connections between these.
More Lessons In This Unit
- Add 2-digit numbers using column addition Study Guide
- Add 3-digit numbers using column addition Study Guide
- Use column addition to add numbers by regrouping ones Study Guide
- Use column addition to add numbers by regrouping tens Study Guide
- Use column addition to solve problems Study Guide
- Use column addition with regrouping in ones and tens Study Guide
- Use column addition with regrouping to solve problems Study Guide
- Use known facts and strategies to accurately and efficiently calculate and check column addition Study Guide
- Use place value to correctly lay out column addition Study Guide
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