Keystones — Lintel

Five GCSE retrieval questions · 24 July 2022 · mathsvault.uk/keystones

1. Number

Simplify: x⁴ × x²

Answer: x⁶
2. Algebra

Solve: 9x - 3 = 5x + 13

Answer: x = 4
3. Geometry

Opposite = 18cm, adjacent = 16cm. Calculate the angle

Answer: 48.4°
4. Ratio

Simplify: 4:6:8

Answer: 2:3:4
5. Statistics

Find the range of: 4, 27, 34, 39, -19

Answer: 58

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