Keystones — Bedrock
Five GCSE retrieval questions · 14 January 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 27
Answer: 21 + 27 = 48 -
2. Algebra Substitution
If x = 9, find the value of 6x + 9
Answer: 63 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 10:20
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 17, 11, 5, 15
Answer: 12