Keystones — Cornerstone
Five GCSE retrieval questions · 26 April 2015 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 6⁄7 + 1⁄4
Answer: 31⁄28 -
2. Algebra Two-step equations
Solve: 2x + 8 = 24
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 3cm and b = 12cm. Give your answer to 2 decimal places
Answer: 12.37cm -
4. Ratio Sharing in a ratio
Share 85 in the ratio 1:4
Answer: 17 and 68 -
5. Statistics Mean
Find the mean of: 8, 3, 4
Answer: 5