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Cornerstone · Grades 3–5 Keystones #1 29 August 2016 Skills week 1 of 7
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Five GCSE retrieval questions · 29 August 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 3⁄8

    Answer: 17⁄24
  2. 2. Algebra Two-step equations

    Solve: 4x + 5 = 53

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Share 112 in the ratio 4:3

    Answer: 64 and 48
  5. 5. Statistics Mean

    Calculate the mean of: 15, 15, 47, 41, 36, 11, 35. Give your answer to 2 decimal places

    Answer: 28.57

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