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Cornerstone · Grades 3–5 Keystones #1 4 July 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 July 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄5 + 2⁄3

    Answer: 19⁄15
  2. 2. Algebra Two-step equations

    Solve: 7x - 16 = 40

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 40cm

    Answer: 41cm
  4. 4. Ratio Sharing in a ratio

    Share 35 in the ratio 4:1

    Answer: 28 and 7
  5. 5. Statistics Mean

    Calculate the mean of: 11, 46, 30, 25, 47, 7, 34

    Answer: 28.6

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