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Cornerstone · Grades 3–5 Keystones #1 20 May 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 May 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄8 + 4⁄6

    Answer: 7⁄6
  2. 2. Algebra Two-step equations

    Solve: 3x + 14 = 29

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 6cm and 8cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Divide 84 in the ratio 2:3:1

    Answer: 28, 42 and 14
  5. 5. Statistics Mean

    Calculate the mean of: 10, 43, 48, 18, 11, 6, 23, 28

    Answer: 23.4

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