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Cornerstone · Grades 3–5 Keystones #1 28 June 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 28 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄7 + 2⁄7

    Answer: 4⁄7
  2. 2. Algebra Two-step equations

    Solve: 5x + 8 = 43

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

    Calculate the hypotenuse when a = 10cm and b = 10cm

    Answer: 14.14cm
  4. 4. Ratio Sharing in a ratio

    Divide 168 in the ratio 3:3:1

    Answer: 72, 72 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 44, 48, 31, 11, 44, 14, 24, 16

    Answer: 29

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