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Cornerstone · Grades 3–5 Keystones #1 24 March 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 24 March 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄5 + 6⁄7

    Answer: 44⁄35
  2. 2. Algebra Two-step equations

    Solve: 3x + 11 = 44

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 10.77cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 1:2

    Answer: 15 and 30
  5. 5. Statistics Mean

    Find the mean of: 14, 13, 15, 9, 19

    Answer: 14

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