Keystones — Bedrock
Five GCSE retrieval questions · 4 August 2016 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 91 + 20
Answer: 91 + 20 = 111 -
2. Algebra Substitution
If x = 8, find the value of 8x + 9
Answer: 73 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 18:24
Answer: 3:4 -
5. Statistics Mean
Find the mean of: 12, 15, 19, 14, 15
Answer: 15