Keystones — Cornerstone
Five GCSE retrieval questions · 16 June 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 7⁄12 + 4⁄12
Answer: 11⁄12 -
2. Algebra Two-step equations
Solve: 4x + 14 = 26
Answer: x = 3 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 4cm and b = 9cm. Give your answer to 2 decimal places
Answer: 9.85cm -
4. Ratio Sharing in a ratio
Share 112 in the ratio 3:4
Answer: 48 and 64 -
5. Statistics Mean
Find the mean of: 6, 13, 2
Answer: 7