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Cornerstone · Grades 3–5 Keystones #1 26 May 2014 Skills week 1 of 7
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Five GCSE retrieval questions · 26 May 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄5 + 1⁄5

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

    Solve: 4x - 17 = 15

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 6cm. Give your answer to 2 decimal places

    Answer: 6.71cm
  4. 4. Ratio Sharing in a ratio

    Divide 88 in the ratio 4:3:1

    Answer: 44, 33 and 11
  5. 5. Statistics Mean

    Find the mean of: 16, 13, 8, 11

    Answer: 12

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