Keystones — Lintel

Five GCSE retrieval questions · 20 May 2022 · mathsvault.uk/keystones

1. Number

Calculate: 995 + 583

Answer: 1578
2. Algebra

Solve: ^x⁄₇ = 2.1428571428571

Answer: x = 15
3. Geometry

Calculate the area of a circle with diameter 18cm

Answer: 254.47cm²
4. Ratio

Simplify the ratio 2m:200cm

Answer: 1:100
5. Statistics

Calculate the mean of: 29, 8, 34, 25, 33, 28

Answer: 26.2

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