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Percentages

Revise Percentages in Number for GCSE Mathematics with 14 exam-style questions and 22 flashcards. This topic appears regularly enough that it should be part of a solid GCSE revision cycle.

Study this topic

1

Parts per Hundred

Introduction2

What Are Percentages?

Key Facts3

Key Percentage Conversions

Key Facts4

Method: Finding a Percentage of an Amount

Deep Dive5

Method: Expressing as a Percentage

Deep Dive6

Method: Percentage Increase/Decrease

Deep Dive7

Common Percentage Calculations

Diagram8

Worked Example 1: Percentage of an Amount

Notes9

Worked Example 2: Expressing as Percentage

Notes10

Worked Example 3: Percentage Increase

Notes11

Worked Example 4: Reverse Percentage

Notes12

Higher Level: Compound Percentages

Deep Dive13

Higher Level: Percentage Points vs Percentage Change

Deep Dive14

Common Mistakes to Avoid

Exam Tips15

Exam Tips

Exam Tips

Sample Flashcards

What is a percentage?
Parts per hundred Percent = per cent = per 100 % symbol means 'out of 100' 50% = 50/100 = half
Percentage to decimal
Divide by 100 75% = 0.75 8% = 0.08 150% = 1.5 Move decimal point 2 places left

Sample Questions

Which calculation correctly finds 35% of £240 using the decimal method?

  • A. 240 ÷ 35
  • B. 240 × 3.5
  • C. 240 × 0.35
  • D. 35 ÷ 240
1 markfoundation

Which formula correctly expresses one quantity as a percentage of another?

  • A. (part ÷ whole) × 100
  • B. (whole ÷ part) × 100
  • C. (part × whole) ÷ 100
  • D. (whole − part) × 100
1 markfoundation

14

exam-style questions

22

revision flashcards

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