NumberKey Facts

Key Square Numbers (MUST KNOW!)

Part of Powers & RootsGCSE Mathematics

This key facts covers Key Square Numbers (MUST KNOW!) 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 3 of 13 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 3 of 13

Practice

15 questions

Recall

22 flashcards

Key Square Numbers (MUST KNOW!)

Number 1 2 3 4 5 6 7 8 9 10
Square 1 4 9 16 25 36 49 64 81 100
Number 11 12 13 14 15 16 17 18 19 20
Square 121 144 169 196 225 256 289 324 361 400

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?

  • A. -8
  • B. -6
  • C.
  • D.
1 markfoundation

Explain why x⁻¹ = 1/x

2 markshigher

Quick Recall Flashcards

Powers of 10
10¹ = 10 10² = 100 10³ = 1,000 10⁴ = 10,000 10⁵ = 100,000 10⁶ = 1,000,000 Pattern: n zeros after 1
Cubes: 1³ to 5³
1³ = 1 2³ = 8 3³ = 27 4³ = 64 5³ = 125

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