Keystones — Bedrock
Five GCSE retrieval questions · 27 April 2011 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 21 + 24
Answer: 21 + 24 = 45 -
2. Algebra Substitution
If x = 10, find the value of 8x + 8
Answer: 88 -
3. Geometry Converting lengths
Convert 8cm to mm
Answer: 80mm -
4. Ratio Simplifying ratios
Simplify the ratio 16:12
Answer: 4:3 -
5. Statistics Mean
Find the mean of: 15, 14, 21, 6
Answer: 14