Year 4 - Maths
Use addition and subtraction strategies to solve problems with multiples of 100
Secure place value to 1000: apply to addition and subtraction: multiples of 100
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Study Guides
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 explain how many tens, hundreds and ones 1,000 is composed of. They will use different strategies to add and subtract multiples of 100.
Lesson Summary
You will learn to use addition and subtraction to solve problems with multiples of 100.
Key Notes
- Known facts help us to add and subtract multiples of 100
- Unitising can help us to add and subtract multiples of 100
- Adding and subtracting multiples of 100 can be represented in different ways.
Vocabulary To Learn
- Multiple: A multiple is the result of multiplying a number by another whole number.
Common Mistakes To Avoid
- For some questions in this lesson, there is more than one possible answer, but all may not provide the solution to the problem posed. Pupils may give the first (incorrect) answer that they find.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Known facts help us to add and subtract multiples of 100. Unitising can help us to add and subtract multiples of 100.
2. Use this key word in a maths sentence and explain it clearly. 'Multiple'
A multiple is the result of multiplying a number by another whole number. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: For some questions in this lesson, there is more than one possible answer, but all may not provide the solution to the problem posed. Pupils may give the first (incorrect) answer that they find. Correction: For the second task, encourage pupils to distinguish between questions that only have one solution and those that have multiple solutions. Modelling your thinking throughout the second learning cycle is key to supporting pupils to access the task.
More Lessons In This Unit
Browse all guides in the Year 4 Maths guide library.