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Cornerstone · Grades 3–5 Keystones #1 18 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄6 + 2⁄4

    Answer: 4⁄3
  2. 2. Algebra Two-step equations

    Solve: 7x + 9 = 72

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Share 49 in the ratio 4:3

    Answer: 28 and 21
  5. 5. Statistics Mean

    Calculate the mean of: 33, 18, 48, 11, 41, 40, 49, 27

    Answer: 33.4

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