Keystones — Lintel
Five GCSE retrieval questions · 25 May 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 126. What are the numbers?
Answer: 41, 42, and 43 -
2. Algebra
Solve: 9x = 108
Answer: x = 12 -
3. Geometry
Opposite = 18cm, adjacent = 8cm. Calculate the angle
Answer: 66° -
4. Ratio
Simplify: 20:24:8
Answer: 5:6:2 -
5. Statistics
Calculate the mean of: 28, 25, 9, 37, 42, 34
Answer: 29.2