Keystones — Cornerstone
Five GCSE retrieval questions · 7 April 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 33 + ? = 109
Answer: 76 -
2. Algebra
Factorise: 9x² + 4x
Answer: x(9x + 4) -
3. Geometry
Opposite = 8cm, hypotenuse = 11.3cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 10:35
Answer: 2:7 -
5. Statistics
Find the mean of: 10, 11, 3, 3
Answer: 6.75