Keystones — Cornerstone
Five GCSE retrieval questions · 5 May 2017 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄6 + 5⁄8
Answer: 23⁄24 -
2. Algebra Two-step equations
Solve: 8x - 13 = 83
Answer: x = 12 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 4cm and b = 11cm. Give your answer to 2 decimal places
Answer: 11.7cm -
4. Ratio Sharing in a ratio
Share 25 in the ratio 4:1
Answer: 20 and 5 -
5. Statistics Mean
Find the mean of: 5, 16, 3
Answer: 8