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Cornerstone · Grades 3–5 Keystones #1 3 March 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 3 March 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄12 + 2⁄12

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

    Solve: 8x - 13 = 67

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

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

    Answer: 5.66cm
  4. 4. Ratio Sharing in a ratio

    Divide 96 in the ratio 3:2:3

    Answer: 36, 24 and 36
  5. 5. Statistics Mean

    Find the mean of: 7, 2, 12

    Answer: 7

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