Keystones — Cornerstone
Five GCSE retrieval questions · 10 May 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 1⁄5 + 3⁄5
Answer: 4⁄5 -
2. Algebra Two-step equations
Solve: 2x - 11 = -1
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 3cm and 4cm
Answer: 5cm -
4. Ratio Sharing in a ratio
Share 77 in the ratio 3:4
Answer: 33 and 44 -
5. Statistics Mean
Find the mean of: 10, 5, 6, 4
Answer: 6.25