Keystones — Lintel

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

1. Number

Calculate: 993 + 587

Answer: 1580
2. Algebra

Solve: ^x⁄₇ = 5.4285714285714

Answer: x = 38
3. Geometry

Opposite = 15cm, adjacent = 19cm. Calculate the angle

Answer: 38.3°
4. Ratio

Calculate 39.1% of 920

Answer: 359.72
5. Statistics

Find the range of: 23, -17, 12, -9, 19

Answer: 40

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