Keystones — Cornerstone
Five GCSE retrieval questions · 19 November 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 5⁄8 + 2⁄5
Answer: 41⁄40 -
2. Algebra Two-step equations
Solve: 3x - 8 = 10
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 8cm and b = 12cm
Answer: 14.42cm -
4. Ratio Sharing in a ratio
Share 35 in the ratio 3:4
Answer: 15 and 20 -
5. Statistics Mean
Find the mean of: 19, 13, 18, 10, 20
Answer: 16