Keystones — Cornerstone
Five GCSE retrieval questions · 19 June 2022 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 7⁄8 + 1⁄6
Answer: 25⁄24 -
2. Algebra Two-step equations
Solve: 4x + 9 = 33
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 15cm and 36cm
Answer: 39cm -
4. Ratio Sharing in a ratio
Share 56 in the ratio 4:3
Answer: 32 and 24 -
5. Statistics Mean
Calculate the mean of: 28, 42, 11, 38, 11, 43, 47
Answer: 31.4