Year 2 - Maths
Use a 'First, then, then, now' story to add three addends
Calculating within 20
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 add 3 addends. They will use a strategy such as finding 2 addends to total 10 or 2 numbers to bridge though 10.
Lesson Summary
You will learn to use a 'First, then, then, now' story to add three addends.
Key Notes
- A 'First … then … then … now' story can represent an addition with three addends.
- The addition of three addends can be represented as three different objects on a ten frame.
- The addition of three addends can be represented as three steps on a number line.
- The addition of three addends can be represented as an equation.
Vocabulary To Learn
- Addends: Any of the numbers that are added together.
- First: Before anything else.
- Then: After something in time.
- Now: At the present time.
Common Mistakes To Avoid
- Children may not be able to accurately represent the story as an equation.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
A 'First … then … then … now' story can represent an addition with three addends. The addition of three addends can be represented as three different objects on a ten frame.
2. Use this key word in a maths sentence and explain it clearly. 'Addends'
Any of the numbers that are added together. Use this word when showing your method, then check your final answer is reasonable.
3. Spot and fix this common maths mistake.
Mistake: Children may not be able to accurately represent the story as an equation. Correction: Ensure that children are able to say what each number represents in a given equation using the story as a scaffold before asking them to write their own equations to represent 'First, then, then, now' stories.
More Lessons In This Unit
- Add and subtract two numbers that bridge through 10 Study Guide
- Add three addends Study Guide
- Add three addends efficiently Study Guide
- Add three addends efficiently by finding two addends that total 10 Study Guide
- Add two numbers that bridge through 10 Study Guide
- Calculate the difference Study Guide
- Calculate the difference in different contexts Study Guide
- Calculate the difference when information is presented in a bar chart Study Guide
- Calculate the difference when information is presented in a pictogram Study Guide
- Compare the number of objects in two sets or difference between two measures. Study Guide
- Explain that the addends can be added in any order Study Guide
- Explain what the difference is between consecutive numbers Study Guide
- Use knowledge of calculating within 20 to solve problems Study Guide
- Use knowledge of calculating within 20 to solve problems involving statistics Study Guide
Browse all guides in the Year 2 Maths guide library.