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Cornerstone · Grades 3–5 Keystones #1 25 June 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 25 June 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄8 + 2⁄6

    Answer: 23⁄24
  2. 2. Algebra Two-step equations

    Solve: 7x - 7 = 35

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 8cm and 15cm

    Answer: 17cm
  4. 4. Ratio Sharing in a ratio

    Divide 130 in the ratio 2:1:2

    Answer: 52, 26 and 52
  5. 5. Statistics Mean

    Calculate the mean of: 12, 15, 29, 38, 33, 28, 27, 50

    Answer: 29

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