Keystones — Bedrock
Five GCSE retrieval questions · 25 February 2015 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 15 + 21
Answer: 15 + 21 = 36 -
2. Algebra Substitution
If x = 5, find the value of 8x + 8
Answer: 48 -
3. Geometry Converting lengths
Convert 19m to cm
Answer: 1900cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:6
Answer: 5:2 -
5. Statistics Mean
Find the mean of: 13, 3, 8, 8, 23
Answer: 11