Keystones — Bedrock
Five GCSE retrieval questions · 18 March 2014 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 84
Answer: 42 + 84 = 126 -
2. Algebra Substitution
If x = 2, find the value of 8x + 3
Answer: 19 -
3. Geometry Converting lengths
Convert 39cm to mm
Answer: 390mm -
4. Ratio Simplifying ratios
Simplify the ratio 14:12
Answer: 7:6 -
5. Statistics Mean
Find the mean of: 9, 19, 18, 10
Answer: 14