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Cornerstone · Grades 3–5 Keystones #1 17 November 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 17 November 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄12 + 2⁄12

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

    Solve: 4x + 10 = 26

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 11.7cm
  4. 4. Ratio Sharing in a ratio

    Share 105 in the ratio 3:4

    Answer: 45 and 60
  5. 5. Statistics Mean

    Find the mean of: 14, 15, 11, 2, 18

    Answer: 12

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