Keystones — Lintel

Five GCSE retrieval questions · 13 July 2022 · mathsvault.uk/keystones

1. Number

Find the total of 290, 227, and 128

Answer: 645
2. Algebra

Solve: ^x⁄₄ = 2.25

Answer: x = 9
3. Geometry

Opposite = 10cm, adjacent = 20cm. Calculate the angle

Answer: 26.6°
4. Ratio

Simplify: 16:8:8

Answer: 2:1:1
5. Statistics

A spinner has 4 red, 3 blue and 6 green sections. Probability of landing on red?

Answer: ⁴⁄₁₃

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