Keystones — Bedrock
Five GCSE retrieval questions · 19 May 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 73 + 80
Answer: 73 + 80 = 153 -
2. Algebra Substitution
If x = 10, find the value of 2x + 9
Answer: 29 -
3. Geometry Converting lengths
Convert 25cm to mm
Answer: 250mm -
4. Ratio Simplifying ratios
Simplify the ratio 32:16
Answer: 2:1 -
5. Statistics Mean
Find the mean of: 13, 5, 19, 15
Answer: 13