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Cornerstone · Grades 3–5 Keystones #1 4 October 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 4 October 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 5⁄10 + 4⁄10

    Answer: 9⁄10
  2. 2. Algebra Two-step equations

    Solve: 4x + 14 = 38

    Answer: x = 6
  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 36 in the ratio 1:2

    Answer: 12 and 24
  5. 5. Statistics Mean

    Find the mean of: 10, 16, 14, 13, 4

    Answer: 11.4

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