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Cornerstone · Grades 3–5 Keystones #1 1 July 2013 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 1 July 2013 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 7⁄8 + 1⁄5

    Answer: 43⁄40
  2. 2. Algebra Two-step equations

    Solve: 4x - 11 = 5

    Answer: x = 4
  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

    Share 32 in the ratio 3:1

    Answer: 24 and 8
  5. 5. Statistics Mean

    Find the mean of: 9, 7, 20

    Answer: 12

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