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Cornerstone · Grades 3–5 Keystones #1 9 February 2018 Skills week 1 of 7
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Five GCSE retrieval questions · 9 February 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄9 + 2⁄9

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

    Solve: 2x + 12 = 18

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

    Calculate the hypotenuse when a = 4cm and b = 8cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Share 80 in the ratio 3:2

    Answer: 48 and 32
  5. 5. Statistics Mean

    Calculate the mean of: 47, 42, 5, 13, 10, 6, 26. Give your answer to 2 decimal places

    Answer: 21.29

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