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Cornerstone · Grades 3–5 Keystones #1 15 April 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 15 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 9⁄11 + 1⁄11

    Answer: 10⁄11
  2. 2. Algebra Two-step equations

    Solve: 8x - 6 = 106

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 55 in the ratio 1:4

    Answer: 11 and 44
  5. 5. Statistics Mean

    Calculate the mean of: 41, 45, 38, 19, 33, 25, 32

    Answer: 33.3

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