Keystones — Lintel

Five GCSE retrieval questions · 10 February 2022 · mathsvault.uk/keystones

1. Number

43000

Answer: 4.3 × 10⁴
2. Algebra

Solve: ^x⁄₆ = 5.6666666666667

Answer: x = 34
3. Geometry

Calculate the perimeter of a right triangle with sides 6cm and 10cm

Answer: 27.7cm
4. Ratio

Simplify: 16:24:24

Answer: 2:3:3
5. Statistics

Calculate the mean of: 21, 42, 47, 33, 24, 41

Answer: 34.7

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