Keystones — Bedrock
Five GCSE retrieval questions · 9 April 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 99 + 89
Answer: 99 + 89 = 188 -
2. Algebra Substitution
If x = 2, find the value of 6x + 10
Answer: 22 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 6:18
Answer: 1:3 -
5. Statistics Mean
Find the mean of: 5, 6, 15, 6
Answer: 8