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Cornerstone · Grades 3–5 Keystones #1 9 December 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 9 December 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 1⁄4

    Answer: 7⁄12
  2. 2. Algebra Two-step equations

    Solve: 5x + 11 = 41

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 11cm. Give your answer to 2 decimal places

    Answer: 14.21cm
  4. 4. Ratio Sharing in a ratio

    Share 102 in the ratio 2:1

    Answer: 68 and 34
  5. 5. Statistics Mean

    Calculate the mean of: 32, 13, 38, 14, 16, 50, 29, 16

    Answer: 26

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