Keystones — Lintel

Five GCSE retrieval questions · 31 July 2023 · mathsvault.uk/keystones

1. Number

Add: ²⁄₃ + ⁴⁄₆

Answer: ⁴⁄₃
2. Algebra

What is the next term? 2, 8, 32, 128, ...

Answer: 512
3. Geometry

Calculate the perimeter of a right triangle with sides 6cm and 10cm

Answer: 27.7cm
4. Ratio

Simplify: 20:8:8

Answer: 5:2:2
5. Statistics

Find the range of: -4, -23, 34, 15, -1

Answer: 57

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