Keystones — Cornerstone
Five GCSE retrieval questions · 19 April 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 3⁄5 + 6⁄8
Answer: 27⁄20 -
2. Algebra Two-step equations
Solve: 6x - 11 = 31
Answer: x = 7 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 5cm and b = 11cm
Answer: 12.08cm -
4. Ratio Sharing in a ratio
Share 56 in the ratio 3:4
Answer: 24 and 32 -
5. Statistics Mean
Find the mean of: 12, 3, 19
Answer: 11.333333333333