Keystones — Bedrock
Five GCSE retrieval questions · 19 May 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 27 + 20
Answer: 27 + 20 = 47 -
2. Algebra Substitution
If x = 8, find the value of 3x + 11
Answer: 35 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 25:20
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 9, 19, 20, 5
Answer: 13.25