Keystones — Lintel
Five GCSE retrieval questions · 14 February 2022 · mathsvault.uk/keystones
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1. Number
The sum of three consecutive numbers is 105. What are the numbers?
Answer: 34, 35, and 36 -
2. Algebra
Factorise fully: 4x² + 6x
Answer: 2x(2x + 3) -
3. Geometry
Adjacent = 19cm, hypotenuse = 34cm. Find the angle
Answer: 56° -
4. Ratio
Calculate 15.1% of 312
Answer: 47.11 -
5. Statistics
A spinner has 2 red, 2 blue and 6 green sections. Probability of landing on red?
Answer: 1⁄5