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Cornerstone · Grades 3–5 Keystones #1 7 December 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 7 December 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄5 + 4⁄7

    Answer: 41⁄35
  2. 2. Algebra Two-step equations

    Solve: 5x - 14 = 11

    Answer: x = 5
  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 60 in the ratio 2:3

    Answer: 24 and 36
  5. 5. Statistics Mean

    Find the mean of: 17, 2, 5

    Answer: 8

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