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Cornerstone · Grades 3–5 Keystones #1 26 January 2017 Skills week 1 of 7
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Five GCSE retrieval questions · 26 January 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 2⁄9

    Answer: 4⁄9
  2. 2. Algebra Two-step equations

    Solve: 5x + 9 = 49

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

    Calculate the hypotenuse when a = 7cm and b = 10cm. Give your answer to 2 decimal places

    Answer: 12.21cm
  4. 4. Ratio Sharing in a ratio

    Divide 80 in the ratio 2:2:1

    Answer: 32, 32 and 16
  5. 5. Statistics Mean

    Find the mean of: 18, 13, 4, 9

    Answer: 11

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