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Cornerstone · Grades 3–5 Keystones #1 4 May 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 May 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 9⁄12 + 2⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 7x + 13 = 69

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

    Calculate the hypotenuse when a = 11cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 12.53cm
  4. 4. Ratio Sharing in a ratio

    Divide 207 in the ratio 4:1:4

    Answer: 92, 23 and 92
  5. 5. Statistics Mean

    Find the mean of: 4, 13, 13

    Answer: 10

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