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Cornerstone · Grades 3–5 Keystones #1 9 July 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 9 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 1⁄8 + 1⁄3

    Answer: 11⁄24
  2. 2. Algebra Two-step equations

    Solve: 3x + 6 = 39

    Answer: x = 11
  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 95 in the ratio 3:2

    Answer: 57 and 38
  5. 5. Statistics Mean

    Find the mean of: 19, 16, 9, 16, 13

    Answer: 14.6

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