Keystones — Bedrock
Five GCSE retrieval questions · 21 December 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 44
Answer: 15 + 44 = 59 -
2. Algebra Substitution
If x = 9, find the value of 7x + 10
Answer: 73 -
3. Geometry Converting lengths
Convert 30cm to mm
Answer: 300mm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 6, 11, 9, 20, 18
Answer: 12.8