Understanding Powers and Roots
Part of Powers & Roots · GCSE GCSE Mathematics revision
This key facts covers Understanding Powers and Roots within Powers & Roots for GCSE Mathematics. Revise Powers & Roots in Number for GCSE Mathematics with 15 exam-style questions and 22 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 14 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 14
Practice
15 questions
Recall
22 flashcards
Understanding Powers and Roots
- Power/Index: Shows how many times to multiply: 2⁴ = 2 × 2 × 2 × 2 = 16
- Base: The number being multiplied: in 5³, the base is 5
- Square: Power of 2 (area of a square)
- Cube: Power of 3 (volume of a cube)
- Square root: What number squared gives this? √25 = 5
- Cube root: What number cubed gives this? ∛8 = 2
Keep building this topic
Read this section alongside the surrounding pages in Powers & Roots. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Powers & Roots
What is the value of 2⁻³?
Explain why x⁻¹ = 1/x
Quick Recall Flashcards
15 questions on Powers & Roots — practise free
Instant marking, adaptive difficulty, and 22 spaced repetition flashcards. Free until your GCSEs.
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