Keystones — Bedrock
Five GCSE retrieval questions · 29 June 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 66 + 98
Answer: 66 + 98 = 164 -
2. Algebra Substitution
If x = 10, find the value of 2x + 3
Answer: 23 -
3. Geometry Converting lengths
Convert 18m to cm
Answer: 1800cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:20
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 10, 14, 19, 9, 3
Answer: 11