Keystones — Bedrock
Five GCSE retrieval questions · 16 September 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 32
Answer: 21 + 32 = 53 -
2. Algebra Substitution
If x = 9, find the value of 2x + 7
Answer: 25 -
3. Geometry Converting lengths
Convert 11m to cm
Answer: 1100cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:15
Answer: 7:5 -
5. Statistics Mean
Find the mean of: 5, 6, 11, 9, 3
Answer: 6.8