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Cornerstone · Grades 3–5 Keystones #1 16 July 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 16 July 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄7 + 3⁄6

    Answer: 17⁄14
  2. 2. Algebra Two-step equations

    Solve: 6x - 18 = 66

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Divide 104 in the ratio 4:3:1

    Answer: 52, 39 and 13
  5. 5. Statistics Mean

    Find the mean of: 5, 6, 7

    Answer: 6

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