Keystones — Bedrock
Five GCSE retrieval questions · 30 September 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 71 + 27
Answer: 71 + 27 = 98 -
2. Algebra Substitution
If x = 5, find the value of 8x + 9
Answer: 49 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 7, 9, 18, 5, 13
Answer: 10.4