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

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 7⁄11

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

    Solve: 3x - 15 = -3

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Divide 99 in the ratio 2:3:4

    Answer: 22, 33 and 44
  5. 5. Statistics Mean

    Calculate the mean of: 19, 13, 32, 31, 11, 22, 41, 11

    Answer: 22.5

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