Keystones — Bedrock
Five GCSE retrieval questions · 9 June 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 81 + 43
Answer: 81 + 43 = 124 -
2. Algebra Substitution
If x = 10, find the value of 2x + 8
Answer: 28 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 21:24
Answer: 7:8 -
5. Statistics Mean
Find the mean of: 8, 18, 13, 9
Answer: 12