Keystones — Cornerstone
Five GCSE retrieval questions · 6 August 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 4⁄5 + 2⁄4
Answer: 13⁄10 -
2. Algebra Two-step equations
Solve: 7x + 13 = 76
Answer: x = 9 -
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 48 in the ratio 1:2
Answer: 16 and 32 -
5. Statistics Mean
Find the mean of: 15, 10, 8
Answer: 11