Keystones — Cornerstone
Five GCSE retrieval questions · 30 May 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 2⁄6 + 2⁄6
Answer: 2⁄3 -
2. Algebra Two-step equations
Solve: 5x - 6 = 29
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 12cm and b = 4cm. Give your answer to 2 decimal places
Answer: 12.65cm -
4. Ratio Sharing in a ratio
Share 24 in the ratio 2:1
Answer: 16 and 8 -
5. Statistics Mean
Calculate the mean of: 45, 25, 30, 46, 40, 25, 50. Give your answer to 2 decimal places
Answer: 37.29