Keystones — Bedrock
Five GCSE retrieval questions · 3 April 2017 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 26 + 57
Answer: 26 + 57 = 83 -
2. Algebra Substitution
If x = 9, find the value of 8x + 5
Answer: 77 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:4
Answer: 3:2 -
5. Statistics Mean
Find the mean of: 20, 10, 12
Answer: 14