Year 4 - Maths
Explain the relationship between adjacent multiples of nine
Represent counting in nines as the 9 times table
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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 counting in 9s as the 9x table explaining the relationship between adjacent multiples of 9. They will use known facts from the 10x table to solve problems involving the 9x table.
Lesson Summary
You will learn to explain the relationship between adjacent multiples of nine.
Key Notes
- Adjacent multiples of nine have a difference of 9
- If you add 9 to a multiple of nine you get the next multiple of nine.
- If you subtract 9 from a multiple of nine you get the previous multiple of nine.
Vocabulary To Learn
- Adjacent: Adjacent means next to each other.
- Multiple: A multiple is the result of multiplying a number by another whole number.
Common Mistakes To Avoid
- Pupils may not understand the keyword adjacent and have difficult understanding the word problems.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Adjacent multiples of nine have a difference of 9. If you add 9 to a multiple of nine you get the next multiple of nine.
2. Use this key word in a maths sentence and explain it clearly. 'Adjacent'
Adjacent means next to each other. 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 not understand the keyword adjacent and have difficult understanding the word problems. Correction: Model correct usage in a range of contexts including labelling abstract equations and using the term to identify the known elements in worded problems. Take time to show adjacent on number lines connecting to addition and subtraction of equal groups.
More Lessons In This Unit
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