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Cornerstone · Grades 3–5 Keystones #1 2 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄11 + 4⁄11

    Answer: 5⁄11
  2. 2. Algebra Two-step equations

    Solve: 3x - 10 = 23

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

    Find the hypotenuse of a right triangle with sides 7cm and 24cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Divide 110 in the ratio 3:3:4

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

    Calculate the mean of: 12, 41, 35, 23, 7, 47, 41

    Answer: 29.4

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