Keystones — Lintel

Five GCSE retrieval questions · 11 February 2022 · mathsvault.uk/keystones

1. Number

Calculate: 992 + 612

Answer: 1604
2. Algebra

Solve: 8x - 5 = 6x + 11

Answer: x = 8
3. Geometry

Adjacent = 21cm, hypotenuse = 33cm. Find the angle

Answer: 50.5°
4. Ratio

Simplify: 8:24:16

Answer: 1:3:2
5. Statistics

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

Answer: ⁶⁄₁₃

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