Keystones — Cornerstone
Five GCSE retrieval questions · 31 August 2021 · mathsvault.uk/keystones
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1. Number
Calculate: 93 + 21
Answer: 93 + 21 = 114 -
2. Algebra
Solve: 9x = 99
Answer: x = 11 -
3. Geometry
Opposite = 16cm, adjacent = 8cm. Calculate the angle
Answer: 63.4° -
4. Ratio
Calculate 25% of 104
Answer: 26 -
5. Statistics
Find the mean of: 8, 14, 8, 15
Answer: 11.25