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Year 4 - Maths

Solve problems using the relationship between 3 and 9 times table

Relationship between the 3 and 9 times tables

Unit Summary

In this unit pupils will explain the relationship between multiples of 3 and multiples of 9 and use it, along with the tests of divisibility for the 3-, 6- and 9-times tables, to solve problems.

Lesson Summary

You will learn to solve problems using the relationship between pairs of 3 and 9 times table facts with the same product.

Key Notes

  • Multiples of 3 are also multiples of 9
  • In any product in the 9 times table, there will always be three times the number of 3s as there are 9s

Vocabulary To Learn

  • Product: A product is the answer when two or more numbers are multiplied together.

Common Mistakes To Avoid

  • Pupils may find it difficult to solve problems or misunderstand questions.

3 Quick Questions (With Answers)

1. Solve this in steps: explain the method from this lesson and why each step matters.

Multiples of 3 are also multiples of 9. In any product in the 9 times table, there will always be three times the number of 3s as there are 9s.

2. Use this key word in a maths sentence and explain it clearly. 'Product'

A product is the answer when two or more numbers are multiplied together. 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 find it difficult to solve problems or misunderstand questions. Correction: Model clearly how to identify key phrases and words which will identify the operation and equation required for word problems. This could involve drawing bar models or other representations.

More Lessons In This Unit

Browse all guides in the Year 4 Maths guide library.