Keystones — Lintel

Five GCSE retrieval questions · 5 July 2024 · mathsvault.uk/keystones

1. Number

Calculate: 990 + 782

Answer: 1772
2. Algebra

Expand: 3(3x + 3)

Answer: 9x + 9
3. Geometry

Find the perimeter: hypotenuse = 17cm, one side = 13cm

Answer: 41cm
4. Ratio

Find 85% of 145

Answer: 123.25
5. Statistics

A spinner has 2 red, 5 blue and 5 green sections. Probability of landing on red?

Answer: ¹⁄₆

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