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

Five GCSE retrieval questions · 3 September 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄10 + 1⁄10

    Answer: 7⁄10
  2. 2. Algebra Two-step equations

    Solve: 2x + 4 = 12

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 11cm and b = 9cm. Give your answer to 2 decimal places

    Answer: 14.21cm
  4. 4. Ratio Sharing in a ratio

    Share 56 in the ratio 1:3

    Answer: 14 and 42
  5. 5. Statistics Mean

    Find the mean of: 11, 8, 2

    Answer: 7

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