Keystones — Cornerstone
Five GCSE retrieval questions · 3 September 2018 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 7⁄10 + 1⁄10
Answer: 4⁄5 -
2. Algebra Two-step equations
Solve: 4x + 10 = 34
Answer: x = 6 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 5cm and 12cm
Answer: 13cm -
4. Ratio Sharing in a ratio
Share 72 in the ratio 2:1
Answer: 48 and 24 -
5. Statistics Mean
Find the mean of: 16, 2, 11
Answer: 9.6666666666667