Keystones — Cornerstone
Five GCSE retrieval questions · 27 April 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄3 + 3⁄6
Answer: 7⁄6 -
2. Algebra Two-step equations
Solve: 4x - 13 = 11
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 13cm. Give your answer to 2 decimal places
Answer: 15.26cm -
4. Ratio Sharing in a ratio
Divide 144 in the ratio 1:1:2
Answer: 36, 36 and 72 -
5. Statistics Mean
Find the mean of: 10, 17, 3
Answer: 10