Keystones — Capstone
Five GCSE retrieval questions · 27 November 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 102. What are the numbers?
Answer: 33, 34, and 35 -
2. Algebra
Expand: 3(3x - 12)
Answer: 9x - 36 -
3. Geometry
Adjacent = 29cm, hypotenuse = 45cm. Find the angle
Answer: 49.9° -
4. Ratio
Simplify the ratio 3m:300cm
Answer: 1:100 -
5. Statistics
The mean of 6 numbers is 28. If 5 of them are 36, 32, 18, 49, 34, what is the missing number?
Answer: -1