Year 2 - Maths
Estimate the position of multiples of ten on a 0 - 100 number line
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 estimate the position of multiples of ten on a 0 - 100 number line.
Key Notes
- There are ten jumps of ten on a line from 0 to 100
- The multiples of ten are equally spaced.
- Knowledge of counting to ten can help you count in tens to 100
Vocabulary To Learn
- Estimate: To find a value that is close enough to the right answer, usually with some thought or calculation involved.
- Number line: A line showing numbers in their correct positions relative to one another. It can be horizontal or vertical and can be marked or unmarked.
- Multiple: A multiple is the result of multiplying a number by another whole number.
Common Mistakes To Avoid
- Children may find it hard to draw their own number lines accurately.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
There are ten jumps of ten on a line from 0 to 100. The multiples of ten are equally spaced.
2. Use this key word in a maths sentence and explain it clearly. 'Estimate'
To find a value that is close enough to the right answer, usually with some thought or calculation involved. 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 find it hard to draw their own number lines accurately. Correction: Encourage children to mark the midpoint and equally space the numbers by using fingers or an object to space them out.
More Lessons In This Unit
- Add and subtract multiples of ten Study Guide
- Explain that one ten is equivalent to ten ones 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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