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

Five GCSE retrieval questions · 3 February 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄6 + 4⁄8

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

    Solve: 7x - 16 = 54

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 13cm

    Answer: 13.93cm
  4. 4. Ratio Sharing in a ratio

    Divide 270 in the ratio 3:4:3

    Answer: 81, 108 and 81
  5. 5. Statistics Mean

    Calculate the mean of: 22, 37, 20, 30, 32, 22, 8

    Answer: 24.4

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