Keystones — Lintel
Five GCSE retrieval questions · 17 April 2021 · mathsvault.uk/keystones
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1. Number
What is the missing number: 98 + ? = 115
Answer: 17 -
2. Algebra
Factorise fully: 9x² + 12x
Answer: 3x(3x + 4) -
3. Geometry
Adjacent = 26cm, hypotenuse = 44cm. Find the angle
Answer: 53.8° -
4. Ratio
Calculate 28.2% of 699
Answer: 197.12 -
5. Statistics
A spinner has 3 red, 5 blue and 4 green sections. Probability of landing on red?
Answer: 1⁄4