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Cornerstone · Grades 3–5 Keystones #1 2 July 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 July 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄9 + 1⁄9

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

    Solve: 5x + 8 = 43

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 15cm. Give your answer to 2 decimal places

    Answer: 19.21cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 2:3

    Answer: 12 and 18
  5. 5. Statistics Mean

    Find the mean of: 13, 14, 18

    Answer: 15

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