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

Five GCSE retrieval questions · 7 December 2016 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 3⁄8

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 5x - 8 = 62

    Answer: x = 14
  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

    Share 105 in the ratio 3:4

    Answer: 45 and 60
  5. 5. Statistics Mean

    Find the mean of: 16, 18, 10, 8

    Answer: 13

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