Keystones — Bedrock
Five GCSE retrieval questions · 25 November 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 62 + 94
Answer: 62 + 94 = 156 -
2. Algebra Substitution
If x = 10, find the value of 8x + 11
Answer: 91 -
3. Geometry Converting lengths
Convert 42cm to mm
Answer: 420mm -
4. Ratio Simplifying ratios
Simplify the ratio 20:24
Answer: 5:6 -
5. Statistics Mean
Find the mean of: 2, 19, 19, 5, 18
Answer: 12.6