Year 2 - Maths
Represent equal groups as repeated addition and multiplication
Grouping objects in different ways and relating to multiplication
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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 will describe how objects are grouped and will represent equal groups as repeated addition and multiplication.
Lesson Summary
You will learn to represent equal groups as repeated addition and multiplication.
Key Notes
- Repeated addition can be written as a multiplication.
- The x symbol represents times.
- 3 groups of 5 can be represented as 5 + 5 + 5 or as 3 x 5
- 3 represents the number of groups and 5 represents the number in each group.
Vocabulary To Learn
- Multiplication: The basic idea of multiplication is repeated addition, adding a number to itself multiple times. The result of a multiplication is a product.
- Groups / grouping: A set of things with an identity.
Common Mistakes To Avoid
- Pupils may not understand how to represent the repeated addition expression and a multiplication expression.
3 Quick Questions (With Answers)
1. Solve this in steps: explain the method from this lesson and why each step matters.
Repeated addition can be written as a multiplication. The x symbol represents times.
2. Use this key word in a maths sentence and explain it clearly. 'Multiplication'
The basic idea of multiplication is repeated addition, adding a number to itself multiple times. The result of a multiplication is a product. 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 not understand how to represent the repeated addition expression and a multiplication expression. Correction: Encourage pupils to identify exactly how the equation relates to the image: with the questions 'What does the 3 represent?' 'What does the 2 represent?' 'What does the 6 represent?'.
More Lessons In This Unit
- Describe how objects have been grouped Study Guide
- Explain and represent multiplication when a group contains zero or one items Study Guide
- Explain that objects can be grouped in different ways Study Guide
- Identify and explain each part of a multiplication equation Study Guide
- Represent equal groups as multiplication Study Guide
- Represent equal groups as repeated addition Study Guide
- Use knowledge of multiplication to calcuate the product Study Guide
- Use knowledge of multiplication to solve problems Study Guide
- Use knowledge of multiplication to solve problems in a range of contexts Study Guide
Browse all guides in the Year 2 Maths guide library.