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Cornerstone · Grades 3–5 Keystones #1 22 March 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 March 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄3 + 4⁄6

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 3x - 16 = -1

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Divide 210 in the ratio 3:1:3

    Answer: 90, 30 and 90
  5. 5. Statistics Mean

    Find the mean of: 16, 6, 19, 9, 5

    Answer: 11

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