Keystones — Bedrock
Five GCSE retrieval questions · 9 October 2020 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 38 + 69
Answer: 38 + 69 = 107 -
2. Algebra Substitution
If x = 3, find the value of 4x + 8
Answer: 20 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:16
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 9, 20, 3, 6, 15
Answer: 10.6