Keystones — Lintel
Five GCSE retrieval questions · 14 May 2021 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 135. What are the numbers?
Answer: 44, 45, and 46 -
2. Algebra
Factorise: 6x² + 2x
Answer: 2x(3x + 1) -
3. Geometry
Opposite = 12cm, adjacent = 10cm. Calculate the angle
Answer: 50.2° -
4. Ratio
Simplify: 24:16:12
Answer: 6:4:3 -
5. Statistics
A spinner has 2 red, 3 blue and 2 green sections. Probability of landing on red?
Answer: 2⁄7