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Cornerstone · Grades 3–5 Keystones #1 7 April 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 7 April 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄6 + 2⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x - 9 = 33

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 13cm. Give your answer to 2 decimal places

    Answer: 15.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 108 in the ratio 4:2:3

    Answer: 48, 24 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 36, 26, 34, 10, 28, 6, 45. Give your answer to 2 decimal places

    Answer: 26.43