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Cornerstone · Grades 3–5 Keystones #1 25 October 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 October 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 6⁄7 + 2⁄3

    Answer: 32⁄21
  2. 2. Algebra Two-step equations

    Solve: 3x - 16 = -4

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

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 102 in the ratio 2:1

    Answer: 68 and 34
  5. 5. Statistics Mean

    Find the mean of: 16, 3, 6, 16, 10

    Answer: 10.2

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