Keystones — Bedrock
Five GCSE retrieval questions · 26 February 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 33 + 18
Answer: 33 + 18 = 51 -
2. Algebra Substitution
If x = 9, find the value of 4x + 8
Answer: 44 -
3. Geometry Converting lengths
Convert 7cm to mm
Answer: 70mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:20
Answer: 4:5 -
5. Statistics Mean
Find the mean of: 11, 17, 20, 13, 2
Answer: 12.6