Keystones — Lintel
Five GCSE retrieval questions · 12 June 2024 · mathsvault.uk/keystones
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1. Number
What is the missing number: 54 + ? = 117
Answer: 63 -
2. Algebra
Solve: 9x = 108
Answer: x = 12 -
3. Geometry
Find c if a = 16cm and b = 20cm in a right triangle
Answer: 25.6cm -
4. Ratio
Simplify the ratio 4m:400cm
Answer: 1:100 -
5. Statistics
A bag has 5 red and 7 blue balls. What is the probability of picking a red ball?
Answer: 5⁄12