Keystones — Cornerstone
Five GCSE retrieval questions · 6 November 2013 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄4 + 1⁄8
Answer: 5⁄8 -
2. Algebra Two-step equations
Solve: 8x - 5 = 83
Answer: x = 11 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 10cm and b = 7cm. Give your answer to 2 decimal places
Answer: 12.21cm -
4. Ratio Sharing in a ratio
Share 84 in the ratio 3:4
Answer: 36 and 48 -
5. Statistics Mean
Find the mean of: 2, 14, 11, 13
Answer: 10