Keystones — Lintel

Five GCSE retrieval questions · 23 January 2024 · mathsvault.uk/keystones

1. Number

What is the missing number: 79 + ? = 160

Answer: 81
2. Algebra

Solve: ^x⁄₃ = 6

Answer: x = 18
3. Geometry

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

Answer: 45°
4. Ratio

Find 71% of 448

Answer: 318.08
5. Statistics

Find the range of: -6, -10, 9, 20, -8

Answer: 30

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