Keystones — Lintel
Five GCSE retrieval questions · 19 January 2024 · mathsvault.uk/keystones
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1. Number
Calculate: 8 + (5) + (-6)
Answer: 7 -
2. Algebra
For y = 4x³ + 12, find y when x = 3
Answer: y = 120 -
3. Geometry
Opposite = 9cm, adjacent = 17cm. Calculate the angle
Answer: 27.9° -
4. Ratio
Simplify: 20:8:12
Answer: 5:2:3 -
5. Statistics
A bag has 3 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2