Keystones — Bedrock
Five GCSE retrieval questions · 6 March 2018 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 89 + 89
Answer: 89 + 89 = 178 -
2. Algebra Substitution
If x = 6, find the value of 2x + 8
Answer: 20 -
3. Geometry Converting lengths
Convert 38cm to mm
Answer: 380mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:16
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 25, 6, 9, 19, 6
Answer: 13