Keystones — Cornerstone
Five GCSE retrieval questions · 1 June 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 2⁄6 + 2⁄6
Answer: 2⁄3 -
2. Algebra Two-step equations
Solve: 3x - 18 = 15
Answer: x = 11 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 7cm and 24cm
Answer: 25cm -
4. Ratio Sharing in a ratio
Share 45 in the ratio 3:2
Answer: 27 and 18 -
5. Statistics Mean
Calculate the mean of: 19, 49, 31, 37, 34, 35, 40, 11
Answer: 32