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Cornerstone · Grades 3–5 Keystones #1 6 June 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 6 June 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄12 + 5⁄12

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

    Solve: 4x - 14 = 34

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Divide 128 in the ratio 4:3:1

    Answer: 64, 48 and 16
  5. 5. Statistics Mean

    Find the mean of: 20, 2, 14, 4, 5

    Answer: 9

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