Keystones — Bedrock
Five GCSE retrieval questions · 25 September 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 10 + 33
Answer: 10 + 33 = 43 -
2. Algebra Substitution
If x = 9, find the value of 6x + 12
Answer: 66 -
3. Geometry Converting lengths
Convert 20m to cm
Answer: 2000cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:20
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 15, 13, 16, 12, 10
Answer: 13.2