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Cornerstone · Grades 3–5 Keystones #1 30 April 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 April 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 4⁄6

    Answer: 7⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x + 12 = 36

    Answer: x = 4
  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 140 in the ratio 4:3

    Answer: 80 and 60
  5. 5. Statistics Mean

    Find the mean of: 10, 3, 15, 20

    Answer: 12

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