Keystones — Lintel
Five GCSE retrieval questions · 23 August 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 114. What are the numbers?
Answer: 37, 38, and 39 -
2. Algebra
Factorise: 9x² + 9x
Answer: 9x(x + 1) -
3. Geometry
Opposite = 14cm, adjacent = 10cm. Calculate the angle
Answer: 54.5° -
4. Ratio
Calculate 49.6% of 612
Answer: 303.55 -
5. Statistics
Calculate the mean of: 33, 11, 35, 29, 28, 9
Answer: 24.2