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Cornerstone · Grades 3–5 Keystones #1 6 May 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 May 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 4⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 7x - 15 = 69

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 96 in the ratio 1:2

    Answer: 32 and 64
  5. 5. Statistics Mean

    Find the mean of: 4, 18, 5, 17

    Answer: 11

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