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Cornerstone · Grades 3–5 Keystones #1 23 January 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 23 January 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄7 + 2⁄6

    Answer: 16⁄21
  2. 2. Algebra Two-step equations

    Solve: 3x - 14 = 4

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

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 80 in the ratio 3:1

    Answer: 60 and 20
  5. 5. Statistics Mean

    Find the mean of: 5, 17, 11

    Answer: 11

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