Keystones — Bedrock
Five GCSE retrieval questions · 15 November 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 59
Answer: 20 + 59 = 79 -
2. Algebra Substitution
If x = 6, find the value of 4x + 7
Answer: 31 -
3. Geometry Converting lengths
Convert 12m to cm
Answer: 1200cm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 18, 6, 7, 9
Answer: 10