Keystones — Bedrock
Five GCSE retrieval questions · 10 December 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 31 + 39
Answer: 31 + 39 = 70 -
2. Algebra Substitution
If x = 6, find the value of 8x + 5
Answer: 53 -
3. Geometry Converting lengths
Convert 46cm to mm
Answer: 460mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:4
Answer: 3:1 -
5. Statistics Mean
Find the mean of: 20, 5, 12, 8, 5
Answer: 10