Keystones — Cornerstone
Five GCSE retrieval questions · 25 June 2014 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄7 + 4⁄5
Answer: 43⁄35 -
2. Algebra Two-step equations
Solve: 4x - 6 = 26
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 10cm. Give your answer to 2 decimal places
Answer: 12.81cm -
4. Ratio Sharing in a ratio
Share 55 in the ratio 1:4
Answer: 11 and 44 -
5. Statistics Mean
Find the mean of: 10, 1, 17, 4
Answer: 8