Keystones — Lintel

Five GCSE retrieval questions · 15 July 2023 · mathsvault.uk/keystones

1. Number

75000000

Answer: 7.5 × 10⁷
2. Algebra

Solve: 4x = 36

Answer: x = 9
3. Geometry

Adjacent = 23cm, hypotenuse = 32cm. Find the angle

Answer: 44°
4. Ratio

Simplify the ratio 2m:200cm

Answer: 1:100
5. Statistics

Find the range of: -19, -17, 2, 20, 5

Answer: 39

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