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Cornerstone · Grades 3–5 Keystones #1 10 June 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 June 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄4 + 4⁄5

    Answer: 13⁄10
  2. 2. Algebra Two-step equations

    Solve: 4x - 11 = 9

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

    Calculate the hypotenuse when a = 5cm and b = 15cm

    Answer: 15.81cm
  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: 9, 4, 18, 16

    Answer: 11.75

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