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Cornerstone · Grades 3–5 Keystones #1 26 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄11 + 4⁄11

    Answer: 6⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x - 12 = 0

    Answer: x = 4
  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 72 in the ratio 1:3

    Answer: 18 and 54
  5. 5. Statistics Mean

    Calculate the mean of: 13, 8, 22, 48, 37, 29. Give your answer to 2 decimal places

    Answer: 26.17

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