Keystones — Cornerstone
Five GCSE retrieval questions · 12 June 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄5 + 1⁄8
Answer: 37⁄40 -
2. Algebra Two-step equations
Solve: 4x + 13 = 41
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 4cm. Give your answer to 2 decimal places
Answer: 8.94cm -
4. Ratio Sharing in a ratio
Share 36 in the ratio 3:1
Answer: 27 and 9 -
5. Statistics Mean
Find the mean of: 14, 1, 10, 5, 20
Answer: 10