Keystones — Lintel

Five GCSE retrieval questions · 18 September 2024 · mathsvault.uk/keystones

1. Number

Calculate: 994 + 717

Answer: 1711
2. Algebra

Solve: ^x⁄₇ = 1.5714285714286

Answer: x = 11
3. Geometry

A circle has area 314.2cm². Find its radius (dp)

Answer: 10cm
4. Ratio

Find 21% of 223

Answer: 46.83
5. Statistics

A bag has 5 red and 3 blue balls. What is the probability of picking a red ball?

Answer: ⁵⁄₈

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