Keystones — Cornerstone
Five GCSE retrieval questions · 1 May 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄6 + 1⁄3
Answer: 1⁄1 -
2. Algebra Two-step equations
Solve: 3x - 6 = 24
Answer: x = 10 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 5cm. Give your answer to 2 decimal places
Answer: 9.43cm -
4. Ratio Sharing in a ratio
Share 77 in the ratio 3:4
Answer: 33 and 44 -
5. Statistics Mean
Find the mean of: 8, 2, 12, 18
Answer: 10