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Cornerstone · Grades 3–5 Keystones #1 22 November 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 November 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 7⁄8

    Answer: 37⁄24
  2. 2. Algebra Two-step equations

    Solve: 5x + 4 = 34

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Share 76 in the ratio 1:3

    Answer: 19 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 18, 38, 34, 14, 27, 29

    Answer: 26.7

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