Keystones — Lintel
Five GCSE retrieval questions · 2 September 2023 · mathsvault.uk/keystones
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1. Number
Calculate: 514 + 511
Answer: 514 + 511 = 1025 -
2. Algebra
Solve: 3x = 42
Answer: x = 14 -
3. Geometry
A circle has area 153.9cm². Find its radius (dp)
Answer: 7cm -
4. Ratio
Simplify: 15:18:6
Answer: 5:6:2 -
5. Statistics
A bag has 3 red and 3 blue balls. What is the probability of picking a red ball?
Answer: 1⁄2