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Cornerstone · Grades 3–5 Keystones #1 17 January 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 January 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 4x + 12 = 44

    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

    Share 20 in the ratio 3:1

    Answer: 15 and 5
  5. 5. Statistics Mean

    Find the mean of: 13, 20, 9

    Answer: 14

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