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Cornerstone · Grades 3–5 Keystones #1 8 June 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 8 June 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄6 + 1⁄3

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 5x + 3 = 58

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Share 68 in the ratio 3:1

    Answer: 51 and 17
  5. 5. Statistics Mean

    Calculate the mean of: 11, 14, 11, 7, 19, 48, 44

    Answer: 22

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