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馃搻 Mathematics 10 minLesson 37 of 50

Understanding Direct Proportion

Direct proportion is essential for scaling recipes and calculating costs in shops.

What you will learn

  • Two quantities are in direct proportion if their ratio remains constant.
  • If one value doubles, the other must also double.
  • The graph of a direct proportion relationship is a straight line passing through the origin.

GCSE Maths - What Does Directly Proportional Mean? (2026/27 exams)

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Source

Watch once, then work through the practice sheet.

Practice sheets

3 printable PDFs
1

Recall drill

5 questions 路 write-in answer lines

2

Apply it

4 questions 路 write-in answer lines

3

Test yourself

4 questions 路 write-in answer lines

Interactive quiz

Question 1 of 1

If 3 apples cost 60p, what do 6 apples cost?

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