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Cornerstone · Grades 3–5 Keystones #1 11 May 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 11 May 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 1⁄9

    Answer: 1⁄3
  2. 2. Algebra Two-step equations

    Solve: 2x + 12 = 36

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 16.28cm
  4. 4. Ratio Sharing in a ratio

    Divide 60 in the ratio 2:2:1

    Answer: 24, 24 and 12
  5. 5. Statistics Mean

    Find the mean of: 22, 19, 8, 9, 12

    Answer: 14

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