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

Five GCSE retrieval questions · 5 October 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 4⁄8

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

    Solve: 6x - 19 = 29

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

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 150 in the ratio 3:4:3

    Answer: 45, 60 and 45
  5. 5. Statistics Mean

    Find the mean of: 5, 10, 6

    Answer: 7

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