Keystones — Cornerstone
Five GCSE retrieval questions · 28 August 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 1⁄5 + 2⁄3
Answer: 13⁄15 -
2. Algebra Two-step equations
Solve: 4x - 15 = 17
Answer: x = 8 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 6cm and b = 13cm
Answer: 14.32cm -
4. Ratio Sharing in a ratio
Share 85 in the ratio 1:4
Answer: 17 and 68 -
5. Statistics Mean
Find the mean of: 14, 9, 16
Answer: 13