Keystones — Lintel

Five GCSE retrieval questions · 27 October 2022 · mathsvault.uk/keystones

1. Number

Calculate: 998 + 500

Answer: 1498
2. Algebra

Solve: ^x⁄₅ = 3.2

Answer: x = 16
3. Geometry

Opposite = 18cm, adjacent = 8cm. Calculate the angle

Answer: 66°
4. Ratio

Find 27% of 496

Answer: 133.92
5. Statistics

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

Answer: ¹⁄₂

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