Keystones — Bedrock
Five GCSE retrieval questions · 7 March 2019 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 75 + 27
Answer: 75 + 27 = 102 -
2. Algebra Substitution
If x = 9, find the value of 8x + 9
Answer: 81 -
3. Geometry Converting lengths
Convert 18cm to mm
Answer: 180mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 8, 18, 8, 10, 19
Answer: 12.6