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Cornerstone · Grades 3–5 Keystones #1 26 June 2014 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 26 June 2014 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 3x - 16 = 8

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 15cm and 36cm

    Answer: 39cm
  4. 4. Ratio Sharing in a ratio

    Share 84 in the ratio 2:1

    Answer: 56 and 28
  5. 5. Statistics Mean

    Find the mean of: 10, 3, 14, 5

    Answer: 8

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