Keystones — Lintel

Five GCSE retrieval questions · 7 February 2023 · mathsvault.uk/keystones

1. Number

Calculate: -19 + (3)

Answer: -16
2. Algebra

Solve: 8x = 120

Answer: x = 15
3. Geometry

Opposite = 14cm, adjacent = 15cm. Calculate the angle

Answer: 43°
4. Ratio

Find 54% of 139

Answer: 75.06
5. Statistics

A spinner has 4 red, 5 blue and 6 green sections. Probability of landing on red?

Answer: ⁴⁄₁₅

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