Keystones — Lintel
Five GCSE retrieval questions · 14 October 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 997 + 525
Answer: 1522 -
2. Algebra
What is the next term? 3, 6, 12, 24, ...
Answer: 48 -
3. Geometry
Opposite = 13cm, adjacent = 16cm. Calculate the angle
Answer: 39.1° -
4. Ratio
Simplify: 20:24:20
Answer: 5:6:5 -
5. Statistics
A bag has 8 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2