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Cornerstone · Grades 3–5 Keystones #1 19 January 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 January 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 2⁄6

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

    Solve: 6x - 18 = 42

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 85 in the ratio 4:1

    Answer: 68 and 17
  5. 5. Statistics Mean

    Calculate the mean of: 34, 8, 42, 13, 17, 42

    Answer: 26

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