Keystones — Bedrock
Five GCSE retrieval questions · 26 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 = 5, find the value of 7x + 9
Answer: 44 -
3. Geometry Converting lengths
Convert 2m to cm
Answer: 200cm -
4. Ratio Simplifying ratios
Simplify the ratio 21:6
Answer: 7:2 -
5. Statistics Mean
Find the mean of: 20, 17, 14, 19, 13
Answer: 16.6