Keystones — Cornerstone
Five GCSE retrieval questions · 9 January 2022 · mathsvault.uk/keystones
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1. Number
What is the missing number: 38 + ? = 158
Answer: 120 -
2. Algebra
Find the next term: 22, 25, 28, 31, ...
Answer: 34 -
3. Geometry
Find the perimeter of a right triangle with sides 6cm, 8cm, 10cm
Answer: 24cm -
4. Ratio
Simplify the ratio 24:15
Answer: 8:5 -
5. Statistics
Find the range of: 11, 27, 31, 10, 32
Answer: 22