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

Five GCSE retrieval questions · 1 March 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄8 + 3⁄6

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 4x + 4 = 44

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

    Calculate the hypotenuse when a = 10cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 11.66cm
  4. 4. Ratio Sharing in a ratio

    Divide 252 in the ratio 1:4:4

    Answer: 28, 112 and 112
  5. 5. Statistics Mean

    Calculate the mean of: 34, 39, 38, 22, 34, 47, 27. Give your answer to 2 decimal places

    Answer: 34.43

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