Keystones Lintel — 17 June 2021

Keystones — Lintel

Five GCSE retrieval questions · 17 June 2021 · mathsvault.uk/keystones

1. Number

850000

Answer: 8.5 × 10⁵
2. Algebra

What is the next term? 7, 21, 63, 189, ...

Answer: 567
3. Geometry

Opposite = 16cm, adjacent = 20cm. Calculate the angle

Answer: 38.7°
4. Ratio

Simplify the ratio 4m:400cm

Answer: 1:100
5. Statistics

Find the range of: -5, 13, -20, 10, 46

Answer: 66

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