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Cornerstone · Grades 3–5 Keystones #1 1 July 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 July 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄8 + 3⁄8

    Answer: 5⁄8
  2. 2. Algebra Two-step equations

    Solve: 3x + 8 = 35

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 70 in the ratio 4:3

    Answer: 40 and 30
  5. 5. Statistics Mean

    Find the mean of: 9, 8, 16

    Answer: 11

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