NumberStudy Notes

Worked Example 1: Percentage of an Amount

Part of Percentages — GCSE Mathematics

This study notes covers Worked Example 1: Percentage of an Amount within Percentages for GCSE Mathematics. Revise Percentages in Number for GCSE Mathematics with 14 exam-style questions and 22 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 8 of 15 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 8 of 15

Practice

14 questions

Recall

22 flashcards

Worked Example 1: Percentage of an Amount

Find 35% of £240

Method 1: Decimal

35% = 0.35

0.35 × 240 = 84

Answer: £84

Method 2: Building blocks

10% of 240 = 24

30% = 3 × 24 = 72

5% = 24 ÷ 2 = 12

35% = 72 + 12 = £84

Keep building this topic

Read this section alongside the surrounding pages in Percentages. That gives you the full topic sequence instead of a single isolated revision point.

Common Percentage Calculations Worked Example 2: Expressing as Percentage Parts per Hundred What Are Percentages?

Practice Questions for Percentages

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

Quick Recall Flashcards

Percentage to decimal

Divide by 100 75% = 0.75 8% = 0.08 150% = 1.5 Move decimal point 2 places left

What is a percentage?

Parts per hundred Percent = per cent = per 100 % symbol means 'out of 100' 50% = 50/100 = half

Want to test your knowledge?

PrepWise has 14 exam-style questions and 22 flashcards for Percentages — with adaptive difficulty and instant feedback.

Join Alpha

Common Percentage Calculations

Worked Example 2: Expressing as Percentage