Keystones — Cornerstone
Five GCSE retrieval questions · 9 May 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Calculate: 1⁄8 + 5⁄8
Answer: 3⁄4 -
2. Algebra Two-step equations
Solve: 7x - 8 = 76
Answer: x = 12 -
3. Geometry Pythagoras — hypotenuse
Calculate the hypotenuse when a = 9cm and b = 14cm
Answer: 16.64cm -
4. Ratio Sharing in a ratio
Share 70 in the ratio 4:1
Answer: 56 and 14 -
5. Statistics Mean
Find the mean of: 18, 10, 8
Answer: 12