Keystones — Bedrock
Five GCSE retrieval questions · 8 August 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 78 + 48
Answer: 78 + 48 = 126 -
2. Algebra Substitution
If x = 9, find the value of 8x + 9
Answer: 81 -
3. Geometry Converting lengths
Convert 13cm to mm
Answer: 130mm -
4. Ratio Simplifying ratios
Simplify the ratio 35:30
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 6, 3, 16, 18
Answer: 10.75