Keystones — Cornerstone
Five GCSE retrieval questions · 5 August 2016 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄5 + 2⁄6
Answer: 17⁄15 -
2. Algebra Two-step equations
Solve: 2x + 11 = 35
Answer: x = 12 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 20cm and 21cm
Answer: 29cm -
4. Ratio Sharing in a ratio
Share 24 in the ratio 1:2
Answer: 8 and 16 -
5. Statistics Mean
Find the mean of: 3, 2, 16, 7
Answer: 7