Keystones — Bedrock
Five GCSE retrieval questions · 12 September 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 17 + 39
Answer: 17 + 39 = 56 -
2. Algebra Substitution
If x = 9, find the value of 3x + 7
Answer: 34 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 17, 2, 8, 9, 6
Answer: 8.4