Keystones — Lintel

Five GCSE retrieval questions · 14 December 2022 · mathsvault.uk/keystones

1. Number

Calculate: 811 + 228

Answer: 811 + 228 = 1039
2. Algebra

Solve: ^x⁄₇ = 3.1428571428571

Answer: x = 22
3. Geometry

Opposite = 13cm, adjacent = 17cm. Calculate the angle

Answer: 37.4°
4. Ratio

Simplify the ratio 2m:200cm

Answer: 1:100
5. Statistics

Find the range of: 7, -22, 23, -22, 13

Answer: 45

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