Year 2 - Maths
Explain that one ten is equivalent to ten ones
Composition of multiples of 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 represent multiples of ten using numerals and names and use knowledge of facts and unitising to add and subtract multiples of ten.
Lesson Summary
You will learn to explain that one ten is equivalent to ten ones.
Key Notes
- Ten ones are equal to one ten.
- One ten is equal to ten ones.
- Ten pennies are equal to one ten pence.
Vocabulary To Learn
- Ten: A group of ten objects.
- Ones: Individual objects, grouped in ones.
- Equal to: Exactly the same amount or value.
Common Mistakes To Avoid
- Children may rely on counting in ones rather than recognise a group of ten.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Ten ones are equal to one ten. One ten is equal to ten ones.
2. Use this key word in a maths sentence and explain it clearly. 'Ten'
A group of ten objects. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Children may rely on counting in ones rather than recognise a group of ten. Correction: Encourage children to recognise groups of ten in a variety of contexts. They may need to check one e.g. a bundle of 10 straws but then should be encouraged to use comparative size to know other groups are of equal size.
More Lessons In This Unit
- Add and subtract multiples of ten Study Guide
- Estimate the position of multiples of ten on a 0 - 100 number line Study Guide
- Explain what happens when you add and subtract ten to a multiple of ten Study Guide
- Represent multiples of ten in an expression or an equation Study Guide
- Represent multiples of ten using their numerals Study Guide
- Represent multiples of ten using their numerals and names Study Guide
- Solve problems involving multiples of ten Study Guide
- Solve problems involving multiples of ten in a range of contexts Study Guide
- Use knowledge of facts and unitising to add and subtract multiples of ten Study Guide
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