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Cornerstone · Grades 3–5 Keystones #1 14 September 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 14 September 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 3⁄6

    Answer: 1⁄1
  2. 2. Algebra Two-step equations

    Solve: 2x - 13 = 3

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

    Find the hypotenuse of a right triangle with sides 15cm and 20cm

    Answer: 25cm
  4. 4. Ratio Sharing in a ratio

    Share 64 in the ratio 3:1

    Answer: 48 and 16
  5. 5. Statistics Mean

    Calculate the mean of: 30, 5, 48, 26, 12, 16, 44, 28

    Answer: 26.1

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