Keystones — Bedrock
Five GCSE retrieval questions · 7 September 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 55 + 51
Answer: 55 + 51 = 106 -
2. Algebra
Simplify: 2x + 7x
Answer: 9x -
3. Geometry
Opposite = 8cm, hypotenuse = 9.2cm. Find the angle
Answer: 60° (approximately) -
4. Ratio
Simplify the ratio 15:30
Answer: 1:2 -
5. Statistics
Find the mean of: 3, 19, 3, 15, 15
Answer: 11