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Cornerstone · Grades 3–5 Keystones #1 24 August 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 24 August 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 4⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 6x - 16 = 20

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 9cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 12.04cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 4:1

    Answer: 28 and 7
  5. 5. Statistics Mean

    Find the mean of: 16, 18, 13, 8, 10

    Answer: 13

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