Keystones — Cornerstone
Five GCSE retrieval questions · 20 March 2019 · mathsvault.uk/keystones
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1. Number Adding fractions
Add: 2⁄5 + 1⁄3
Answer: 11⁄15 -
2. Algebra Two-step equations
Solve: 2x + 14 = 24
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 20cm and 21cm
Answer: 29cm -
4. Ratio Sharing in a ratio
Share 64 in the ratio 3:1
Answer: 48 and 16 -
5. Statistics Mean
Find the mean of: 14, 18, 11
Answer: 14.333333333333