Keystones — Bedrock
Five GCSE retrieval questions · 27 March 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 20 + 21
Answer: 20 + 21 = 41 -
2. Algebra Substitution
If x = 4, find the value of 4x + 9
Answer: 25 -
3. Geometry Converting lengths
Convert 23cm to mm
Answer: 230mm -
4. Ratio Simplifying ratios
Simplify the ratio 24:6
Answer: 4:1 -
5. Statistics Mean
Find the mean of: 5, 11, 20, 10
Answer: 11.5