Keystones — Lintel

Five GCSE retrieval questions · 16 October 2022 · mathsvault.uk/keystones

1. Number

Find the total of 221, 105, and 80

Answer: 406
2. Algebra

Solve: ^x⁄₂ = 8

Answer: x = 16
3. Geometry

Adjacent = 24cm, hypotenuse = 30cm. Find the angle

Answer: 36.9°
4. Ratio

Calculate 37.1% of 629

Answer: 233.36
5. Statistics

Calculate the mean of: 31, 11, 30, 47, 35, 20, 37, 6

Answer: 27.1

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