Keystones — Bedrock
Five GCSE retrieval questions · 2 May 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 45 + 44
Answer: 45 + 44 = 89 -
2. Algebra Substitution
If x = 10, find the value of 7x + 8
Answer: 78 -
3. Geometry Converting lengths
Convert 9cm to mm
Answer: 90mm -
4. Ratio Simplifying ratios
Simplify the ratio 6:12
Answer: 1:2 -
5. Statistics Mean
Find the mean of: 23, 19, 5, 13
Answer: 15