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Lintel · Grades 5–7 Keystones #1 28 February 2023
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Keystones — Lintel

Five GCSE retrieval questions · 28 February 2023 · mathsvault.uk/keystones

  1. 1. Number

    Calculate: 12 + 12 + 34

    Answer: 74
  2. 2. Algebra

    Solve: 8x = 112

    Answer: x = 14
  3. 3. Geometry

    Opposite = 13cm, adjacent = 18cm. Calculate the angle

    Answer: 35.8°
  4. 4. Ratio

    Find 58% of 155

    Answer: 89.9
  5. 5. Statistics

    A bag has 8 red and 4 blue balls. What is the probability of picking a red ball?

    Answer: 23