Year 1 - Maths
Create addition and subtraction stories
Additive structures: addition and subtraction
Study Hub
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 find missing addends in equations. They will partition a whole into 2 parts representing first, then, now stories with subtraction equations. They will learn + and - are inverse operations.
Lesson Summary
You will learn to make addition and subtraction stories and write equations to match.
Key Notes
- If starting with and adding/subtracting the same amount, the number at the end of the story will be the same.
- When more are added, the number at the start increases.
- The more that are added, the greater the number at the end of the story will be.
- When some are subtracted, the number at the start decreases.
- The more that are subtracted, the smaller the amount at the end will be.
Vocabulary To Learn
- Add: To find the total, or sum, by combining two or more parts (addends), or to increase an amount by adding another.
- Increase: To make something greater/larger in size or quantity.
- Subtract: To partition one part from another (the subtrahend from the difference), or to decrease an amount by taking an amount away.
- Decrease: To make something smaller in size or quantity.
Common Mistakes To Avoid
- Some children may not relate the size of the number added/subtracted to the number at the end of the story.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
If starting with and adding/subtracting the same amount, the number at the end of the story will be the same. When more are added, the number at the start increases.
2. Use this key word in a maths sentence and explain it clearly. 'Add'
To find the total, or sum, by combining two or more parts (addends), or to increase an amount by adding another. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Some children may not relate the size of the number added/subtracted to the number at the end of the story. Correction: Encourage children to predict how the number at the end of the story will change when the number added/subtracted is increased or decreased.
More Lessons In This Unit
- Find the missing part in addition and subtraction stories Study Guide
- Find the missing part of a subtraction story Study Guide
- Find the missing part of an addition story Study Guide
- Furthering understanding of subtraction as decreasing an amount Study Guide
- Interpret and represent addition stories Study Guide
- Interpret and represent subtraction stories Study Guide
- Know that addition and subtraction are inverse operations Study Guide
- Represent the inverse relationship between addition and subtraction Study Guide
- Understand subtraction as decreasing an amount Study Guide
Browse all guides in the Year 1 Maths guide library.