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Cornerstone · Grades 3–5 Keystones #1 13 May 2016 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 13 May 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄10 + 1⁄10

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

    Solve: 5x - 17 = 13

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

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Share 30 in the ratio 3:2

    Answer: 18 and 12
  5. 5. Statistics Mean

    Find the mean of: 10, 7, 16

    Answer: 11

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