Year 1 - Maths
Counting in multiples of two, five, ten
Solving problems in a range of contexts
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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 have the opportunity to apply their knowledge of counting, comparing and number facts to solve problems in a range of contexts.
Lesson Summary
You will learn to use your knowledge of skip counting forwards and backwards in 2s, 5s, 10s when solving problems.
Key Notes
- When skip counting in twos, we say, 2, 4, 6, 8, 10 …
- When skip counting in twos from any given number, we can see this as two more or two less than the odd or even number.
- When skip counting in fives, we say, 5, 10, 15, 20, 25 …
- When skip counting in tens, we say, 10, 20, 30, 40, 50 …
Vocabulary To Learn
- Skip counting: Counting in a number that is not 1
- Odd number: Any integer that cannot be divided exactly by 2
- Forwards: When you count forwards, the number become greater in value.
- Backwards: When you count backwards, the number become less in value.
Common Mistakes To Avoid
- Children miss out numbers when skip counting.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
When skip counting in twos, we say, 2, 4, 6, 8, 10 …. When skip counting in twos from any given number, we can see this as two more or two less than the odd or even number.
2. Use this key word in a maths sentence and explain it clearly. 'Skip counting'
Counting in a number that is not 1. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Children miss out numbers when skip counting. Correction: Children could have resources like number lines to refer to when counting. These can be removed once children become more confident.
More Lessons In This Unit
Browse all guides in the Year 1 Maths guide library.