All tiers
Bedrock Cornerstone Lintel Capstone
Lintel · Grades 5–7 Keystones #226 14 August 2026 Skills week 5 of 7
Previous day Today Next day PDF (questions) PDF (answers) Weekly & monthly packs

Keystones — Lintel

Five GCSE retrieval questions · 14 August 2026 · mathsvault.uk/keystones

  1. 1. Number Error intervals

    A value is 88.3 (to dp). State the error interval

    Answer: 88.25 ≤ x < 88.35
  2. 2. Algebra Expanding two brackets

    Expand: (x - 3)(x - 5)

    Answer: x² - 8x + 15
  3. 3. Geometry Area of a circle

    Calculate the area of a circle with diameter 9cm

    Answer: 63.62cm²
  4. 4. Ratio One amount as a percentage of another

    47 out of 97 students passed. What percentage passed?

    Answer: 48.5%
  5. 5. Statistics Averages and range

    Find the mean, mode, median and range of: 25, 24, 14, 24, 32

    Answer: Mean = 23.8, Mode = 24, Median = 24, Range = 18