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

Five GCSE retrieval questions · 5 February 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄9 + 2⁄9

    Answer: 4⁄9
  2. 2. Algebra Two-step equations

    Solve: 4x + 7 = 19

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

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Share 51 in the ratio 1:2

    Answer: 17 and 34
  5. 5. Statistics Mean

    Calculate the mean of: 18, 47, 15, 41, 28, 16

    Answer: 27.5

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