Keystones — Bedrock
Five GCSE retrieval questions · 30 January 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 38
Answer: 20 + 38 = 58 -
2. Algebra Substitution
If x = 6, find the value of 7x + 8
Answer: 50 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 20:30
Answer: 2:3 -
5. Statistics Mean
Find the mean of: 3, 18, 19, 17
Answer: 14.25