Keystones — Cornerstone
Five GCSE retrieval questions · 31 October 2023 · mathsvault.uk/keystones
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1. Number
What is the missing number: 63 + ? = 152
Answer: 89 -
2. Algebra
Solve: x + 4 = 22
Answer: x = 18 -
3. Geometry
Opposite = 16cm, adjacent = 20cm. Calculate the angle
Answer: 38.7° -
4. Ratio
Find 57% of 74
Answer: 42.18 -
5. Statistics
Find the range of: 30, 19, 26, 21, 43
Answer: 24