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Cornerstone · Grades 3–5 Keystones #1 13 May 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 13 May 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄11 + 2⁄11

    Answer: 8⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x - 18 = 15

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

    Calculate the hypotenuse when a = 10cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 12.81cm
  4. 4. Ratio Sharing in a ratio

    Divide 147 in the ratio 1:3:3

    Answer: 21, 63 and 63
  5. 5. Statistics Mean

    Calculate the mean of: 11, 16, 8, 45, 10, 32, 43, 12. Give your answer to 2 decimal places

    Answer: 22.13

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