Keystones — Cornerstone
Five GCSE retrieval questions · 25 March 2020 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄5 + 6⁄8
Answer: 23⁄20 -
2. Algebra Two-step equations
Solve: 3x - 13 = 29
Answer: x = 14 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 4cm and b = 4cm
Answer: 5.66cm -
4. Ratio Sharing in a ratio
Share 77 in the ratio 3:4
Answer: 33 and 44 -
5. Statistics Mean
Find the mean of: 14, 10, 10
Answer: 11.333333333333