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Cornerstone · Grades 3–5 Keystones #1 22 June 2017 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 June 2017 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 4⁄6 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 4x - 19 = 37

    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 20 in the ratio 3:1

    Answer: 15 and 5
  5. 5. Statistics Mean

    Find the mean of: 16, 18, 11

    Answer: 15

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