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Cornerstone · Grades 3–5 Keystones #1 18 June 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 June 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 2⁄3

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 3x - 13 = 14

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 10cm and b = 5cm. Give your answer to 2 decimal places

    Answer: 11.18cm
  4. 4. Ratio Sharing in a ratio

    Divide 260 in the ratio 2:1:2

    Answer: 104, 52 and 104
  5. 5. Statistics Mean

    Find the mean of: 11, 12, 10, 17, 10

    Answer: 12

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