Keystones — Bedrock
Five GCSE retrieval questions · 23 June 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 11 + 17
Answer: 11 + 17 = 28 -
2. Algebra Substitution
If x = 5, find the value of 5x + 7
Answer: 32 -
3. Geometry Converting lengths
Convert 16m to cm
Answer: 1600cm -
4. Ratio Simplifying ratios
Simplify the ratio 24:15
Answer: 8:5 -
5. Statistics Mean
Find the mean of: 9, 18, 19, 16, 14
Answer: 15.2