Keystones — Lintel
Five GCSE retrieval questions · 19 October 2025 · mathsvault.uk/keystones
-
1. Number
Add: 38.8 + 7.27
Answer: 38.8 + 7.27 = 46.07 -
2. Algebra
Solve: 4x = 56
Answer: x = 14 -
3. Geometry
Find c if a = 19cm and b = 22cm in a right triangle
Answer: 29.cm -
4. Ratio
Calculate 35.6% of 386
Answer: 137.42 -
5. Statistics
A bag has 6 red and 8 blue balls. What is the probability of picking a red ball?
Answer: 3⁄7