Keystones — Cornerstone
Five GCSE retrieval questions · 22 April 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄8 + 1⁄4
Answer: 5⁄8 -
2. Algebra Two-step equations
Solve: 7x + 4 = 60
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 4cm and b = 15cm. Give your answer to 2 decimal places
Answer: 15.52cm -
4. Ratio Sharing in a ratio
Share 98 in the ratio 3:4
Answer: 42 and 56 -
5. Statistics Mean
Find the mean of: 13, 2, 9
Answer: 8