Keystones — Bedrock
Five GCSE retrieval questions · 5 October 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 18 + 10
Answer: 18 + 10 = 28 -
2. Algebra Substitution
If x = 4, find the value of 6x + 8
Answer: 32 -
3. Geometry Converting lengths
Convert 15m to cm
Answer: 1500cm -
4. Ratio Simplifying ratios
Simplify the ratio 9:21
Answer: 3:7 -
5. Statistics Mean
Find the mean of: 4, 14, 12, 22
Answer: 13