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Cornerstone · Grades 3–5 Keystones #1 2 August 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 August 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄10 + 6⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 3x - 14 = 25

    Answer: x = 13
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 11.4cm
  4. 4. Ratio Sharing in a ratio

    Share 112 in the ratio 4:3

    Answer: 64 and 48
  5. 5. Statistics Mean

    Find the mean of: 14, 2, 4, 19, 16

    Answer: 11

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