Keystones — Cornerstone
Five GCSE retrieval questions · 27 February 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄7 + 1⁄4
Answer: 15⁄28 -
2. Algebra Two-step equations
Solve: 3x - 9 = 30
Answer: x = 13 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 8cm and 15cm
Answer: 17cm -
4. Ratio Sharing in a ratio
Share 63 in the ratio 3:4
Answer: 27 and 36 -
5. Statistics Mean
Find the mean of: 3, 15, 9, 19
Answer: 11.5