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Cornerstone · Grades 3–5 Keystones #1 22 June 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 June 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 4⁄5

    Answer: 17⁄15
  2. 2. Algebra Two-step equations

    Solve: 5x - 5 = 45

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 7cm. Give your answer to 2 decimal places

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Divide 60 in the ratio 2:1:1

    Answer: 30, 15 and 15
  5. 5. Statistics Mean

    Calculate the mean of: 22, 50, 33, 38, 49, 32, 40. Give your answer to 2 decimal places

    Answer: 37.71

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