Keystones — Lintel

Five GCSE retrieval questions · 14 September 2024 · mathsvault.uk/keystones

1. Number

What is the missing number: 67 + ? = 149

Answer: 82
2. Algebra

Solve: ^x⁄₄ = 6.25

Answer: x = 25
3. Geometry

Opposite = 16cm, adjacent = 18cm. Calculate the angle

Answer: 41.6°
4. Ratio

Find 66% of 484

Answer: 319.44
5. Statistics

Calculate the mean of: 31, 46, 12, 17, 9, 28

Answer: 23.8

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