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Cornerstone · Grades 3–5 Keystones #1 29 May 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 29 May 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄9 + 3⁄9

    Answer: 8⁄9
  2. 2. Algebra Two-step equations

    Solve: 2x + 11 = 27

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 14cm. Give your answer to 2 decimal places

    Answer: 16.12cm
  4. 4. Ratio Sharing in a ratio

    Divide 261 in the ratio 4:3:2

    Answer: 116, 87 and 58
  5. 5. Statistics Mean

    Find the mean of: 15, 8, 7

    Answer: 10

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