Keystones — Cornerstone
Five GCSE retrieval questions · 2 November 2017 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 5⁄6 + 2⁄8
Answer: 13⁄12 -
2. Algebra Two-step equations
Solve: 4x + 7 = 19
Answer: x = 3 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 6cm and b = 11cm. Give your answer to 2 decimal places
Answer: 12.53cm -
4. Ratio Sharing in a ratio
Share 133 in the ratio 3:4
Answer: 57 and 76 -
5. Statistics Mean
Find the mean of: 8, 1, 2, 17
Answer: 7