Keystones — Bedrock
Five GCSE retrieval questions · 4 September 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 23 + 40
Answer: 23 + 40 = 63 -
2. Algebra Substitution
If x = 9, find the value of 7x + 12
Answer: 75 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:32
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 3, 18, 19, 5, 12
Answer: 11.4