Keystones — Bedrock
Five GCSE retrieval questions · 23 August 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 25 + 73
Answer: 25 + 73 = 98 -
2. Algebra Substitution
If x = 5, find the value of 4x + 11
Answer: 31 -
3. Geometry Converting lengths
Convert 27cm to mm
Answer: 270mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:30
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 8, 10, 8, 17, 15
Answer: 11.6