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Cornerstone · Grades 3–5 Keystones #1 25 June 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 June 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄9 + 6⁄9

    Answer: 7⁄9
  2. 2. Algebra Two-step equations

    Solve: 3x + 11 = 35

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

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

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

    Share 119 in the ratio 3:4

    Answer: 51 and 68
  5. 5. Statistics Mean

    Find the mean of: 21, 18, 6

    Answer: 15

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