Keystones — Lintel

Five GCSE retrieval questions · 29 January 2026 · mathsvault.uk/keystones

1. Number

Add: ³⁄₆ + ³⁄₇

Answer: ¹³⁄₁₄
2. Algebra

What is the next term? 5, 20, 80, 320, ...

Answer: 1280
3. Geometry

Adjacent = 27cm, hypotenuse = 32cm. Find the angle

Answer: 32.5°
4. Ratio

Find 31% of 410

Answer: 127.1
5. Statistics

Calculate the mean of: 30, 5, 49, 36, 41, 37, 47

Answer: 35

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