Keystones — Bedrock
Five GCSE retrieval questions · 13 January 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 23
Answer: 15 + 23 = 38 -
2. Algebra Substitution
If x = 6, find the value of 4x + 3
Answer: 27 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:24
Answer: 3:8 -
5. Statistics Mean
Find the mean of: 6, 13, 10, 16, 20
Answer: 13