Keystones — Bedrock
Five GCSE retrieval questions · 26 March 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 52 + 70
Answer: 52 + 70 = 122 -
2. Algebra Substitution
If x = 10, find the value of 8x + 9
Answer: 89 -
3. Geometry Converting lengths
Convert 5cm to mm
Answer: 50mm -
4. Ratio Simplifying ratios
Simplify the ratio 40:10
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 8, 20, 7, 10, 2
Answer: 9.4