Keystones — Lintel
Five GCSE retrieval questions · 6 March 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 97 + ? = 156
Answer: 59 -
2. Algebra
Solve: 8x = 80
Answer: x = 10 -
3. Geometry
Adjacent = 12cm, hypotenuse = 29cm. Find the angle
Answer: 65.6° -
4. Ratio
Simplify the ratio 6m:600cm
Answer: 1:100 -
5. Statistics
A bag has 5 red and 4 blue balls. What is the probability of picking a red ball?
Answer: 5⁄9