Keystones — Cornerstone
Five GCSE retrieval questions · 3 August 2020 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 7⁄8 + 5⁄7
Answer: 89⁄56 -
2. Algebra Two-step equations
Solve: 8x - 5 = 67
Answer: x = 9 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 6cm and b = 9cm
Answer: 10.82cm -
4. Ratio Sharing in a ratio
Share 44 in the ratio 1:3
Answer: 11 and 33 -
5. Statistics Mean
Find the mean of: 6, 17, 8, 7, 6
Answer: 8.8