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Cornerstone · Grades 3–5 Keystones #1 29 May 2012 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 29 May 2012 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄8 + 3⁄5

    Answer: 27⁄20
  2. 2. Algebra Two-step equations

    Solve: 5x + 6 = 41

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 12cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 12.65cm
  4. 4. Ratio Sharing in a ratio

    Divide 132 in the ratio 3:4:4

    Answer: 36, 48 and 48
  5. 5. Statistics Mean

    Find the mean of: 2, 9, 13

    Answer: 8

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