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Cornerstone · Grades 3–5 Keystones #1 21 June 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 21 June 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄11 + 1⁄11

    Answer: 7⁄11
  2. 2. Algebra Two-step equations

    Solve: 2x - 15 = -3

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

    Calculate the hypotenuse when a = 7cm and b = 12cm. Give your answer to 2 decimal places

    Answer: 13.89cm
  4. 4. Ratio Sharing in a ratio

    Share 80 in the ratio 1:3

    Answer: 20 and 60
  5. 5. Statistics Mean

    Find the mean of: 3, 19, 2

    Answer: 8

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