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Cornerstone · Grades 3–5 Keystones #1 9 November 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 9 November 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄7 + 1⁄7

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

    Solve: 7x + 8 = 85

    Answer: x = 11
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 12cm

    Answer: 13.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 319 in the ratio 4:4:3

    Answer: 116, 116 and 87
  5. 5. Statistics Mean

    Find the mean of: 10, 16, 2

    Answer: 9.3333333333333

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