Keystones — Cornerstone
Five GCSE retrieval questions · 17 November 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄6 + 1⁄3
Answer: 2⁄3 -
2. Algebra Two-step equations
Solve: 2x + 8 = 14
Answer: x = 3 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 7cm. Give your answer to 2 decimal places
Answer: 10.63cm -
4. Ratio Sharing in a ratio
Share 55 in the ratio 2:3
Answer: 22 and 33 -
5. Statistics Mean
Find the mean of: 14, 18, 15, 10, 13
Answer: 14