Keystones — Lintel

Five GCSE retrieval questions · 11 February 2023 · mathsvault.uk/keystones

1. Number

51000000

Answer: 5.1 × 10⁷
2. Algebra

What is the next term? 4, 8, 16, 32, ...

Answer: 64
3. Geometry

Adjacent = 18cm, hypotenuse = 35cm. Find the angle

Answer: 59.1°
4. Ratio

Find 47% of 345

Answer: 162.15
5. Statistics

Find the range of: -7, 36, 11, 16, -22

Answer: 58

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