Keystones — Cornerstone
Five GCSE retrieval questions · 29 May 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄3 + 2⁄4
Answer: 7⁄6 -
2. Algebra Two-step equations
Solve: 3x - 6 = 6
Answer: x = 4 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 9cm and b = 4cm
Answer: 9.85cm -
4. Ratio Sharing in a ratio
Share 45 in the ratio 1:4
Answer: 9 and 36 -
5. Statistics Mean
Find the mean of: 19, 16, 19, 3
Answer: 14.25