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Cornerstone · Grades 3–5 Keystones #1 7 June 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 7 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄8 + 3⁄6

    Answer: 9⁄8
  2. 2. Algebra Two-step equations

    Solve: 3x + 3 = 21

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 12cm

    Answer: 14.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 100 in the ratio 1:2:2

    Answer: 20, 40 and 40
  5. 5. Statistics Mean

    Find the mean of: 17, 11, 5, 6

    Answer: 9.75

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