Keystones — Bedrock
Five GCSE retrieval questions · 13 May 2022 · mathsvault.uk/keystones
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1. Number
Calculate: 6.7 + 8.9
Answer: 6.7 + 8.9 = 15.6 -
2. Algebra
Solve: x + 11 = 30
Answer: x = 19 -
3. Geometry
Opposite = 9cm, hypotenuse = 12.7cm. Find the angle
Answer: 45° (approximately) -
4. Ratio
Simplify the ratio 30:20
Answer: 3:2 -
5. Statistics
Find the mean of: 19, 10, 11, 15, 2
Answer: 11.4