Keystones — Lintel
Five GCSE retrieval questions · 10 December 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 117. What are the numbers?
Answer: 38, 39, and 40 -
2. Algebra
Expand: 7(8x - 12)
Answer: 56x - 84 -
3. Geometry
Adjacent = 22cm, hypotenuse = 41cm. Find the angle
Answer: 57.5° -
4. Ratio
Simplify: 4:4:12
Answer: 1:1:3 -
5. Statistics
A bag has 6 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 3⁄7