Keystones — Lintel
Five GCSE retrieval questions · 9 September 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 138. What are the numbers?
Answer: 45, 46, and 47 -
2. Algebra
Solve: 7x = 49
Answer: x = 7 -
3. Geometry
Adjacent = 27cm, hypotenuse = 32cm. Find the angle
Answer: 32.5° -
4. Ratio
Simplify: 12:12:18
Answer: 2:2:3 -
5. Statistics
Calculate the mean of: 33, 45, 20, 9, 12, 33, 36, 14
Answer: 25.3