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sum
A sum is obtained by addition.
Beginner · Other / specialist pathway · English
Subject vocabulary and mathematical language
Use mathematical and subject vocabulary with the correct meaning.
Original Kidemy beginner self-study unit · Learn the idea, try the practical activity and review your written answers. Practise spoken delivery with a teacher or proficient listener. Teacher-led course approval and booking are separate.
Learn the idea
A sum is the result of addition; a difference is the result of subtraction. Product belongs to multiplication and quotient to division. Units explain what an amount measures.
Worked example
The difference between 18 cm and 11 cm is 7 cm. Write the unit because 7 by itself does not tell the reader this is a length.
- Choose the operation from meaning, not a keyword alone.
- Keep labels and units with the numbers.
- Explain the calculation in a sentence.
Your written practice
Show your working on paper and enter your answer here. If it does not match, compare the model and try again.
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7
Subtract eleven from eighteen.
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product
Product is the multiplication result.
Write in your own words. A guardian or teacher should review this response.
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Four groups of three make twelve.
Check four groups, three in each and a total of twelve.
Write in your own words. A guardian or teacher should review this response.
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The remaining ribbon is 14 cm long.
Check subtraction and the centimetre unit.
A small subject glossary
Make four cards with a subject word, its meaning and an original example.
Review with a guardian or teacher
- Use correct meanings.
- Include a labelled or unit-bearing example where needed.
- Explain one card aloud to a listener.
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