Keystones — Bedrock
Five GCSE retrieval questions · 18 March 2012 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 22 + 18
Answer: 22 + 18 = 40 -
2. Algebra Substitution
If x = 7, find the value of 8x + 8
Answer: 64 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 15:12
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 23, 4, 7, 18
Answer: 13