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Cornerstone · Grades 3–5 Keystones #1 3 April 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 April 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄10 + 4⁄10

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 6x + 14 = 56

    Answer: x = 7
  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 144 in the ratio 2:4:3

    Answer: 32, 64 and 48
  5. 5. Statistics Mean

    Calculate the mean of: 47, 49, 33, 31, 32, 30, 25, 17

    Answer: 33

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