Keystones — Cornerstone
Five GCSE retrieval questions · 3 August 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 6⁄8 + 1⁄8
Answer: 7⁄8 -
2. Algebra Two-step equations
Solve: 4x - 10 = 22
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 3cm and b = 8cm. Give your answer to 2 decimal places
Answer: 8.54cm -
4. Ratio Sharing in a ratio
Divide 104 in the ratio 4:1:3
Answer: 52, 13 and 39 -
5. Statistics Mean
Find the mean of: 17, 14, 5
Answer: 12