Keystones — Cornerstone
Five GCSE retrieval questions · 24 November 2015 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄8 + 2⁄4
Answer: 1⁄1 -
2. Algebra Two-step equations
Solve: 2x - 8 = 6
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 4cm. Give your answer to 2 decimal places
Answer: 8.94cm -
4. Ratio Sharing in a ratio
Share 32 in the ratio 3:1
Answer: 24 and 8 -
5. Statistics Mean
Find the mean of: 19, 7, 5, 17
Answer: 12