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Cornerstone · Grades 3–5 Keystones #1 17 August 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 August 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄10 + 6⁄10

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 3x + 13 = 43

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 15.52cm
  4. 4. Ratio Sharing in a ratio

    Share 112 in the ratio 3:4

    Answer: 48 and 64
  5. 5. Statistics Mean

    Find the mean of: 14, 12, 12, 2

    Answer: 10

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