Keystones — Lintel
Five GCSE retrieval questions · 7 September 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 46 + ? = 147
Answer: 101 -
2. Algebra
Solve: 2x = 20
Answer: x = 10 -
3. Geometry
A circle has area 530.9cm². Find its radius (dp)
Answer: 13cm -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
A bag has 5 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 5⁄13