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Cornerstone · Grades 3–5 Keystones #1 2 July 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 July 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄7 + 1⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 4x + 4 = 44

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Divide 77 in the ratio 2:3:2

    Answer: 22, 33 and 22
  5. 5. Statistics Mean

    Calculate the mean of: 22, 42, 8, 9, 36, 45, 28. Give your answer to 2 decimal places

    Answer: 27.14

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