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Cornerstone · Grades 3–5 Keystones #1 5 November 2024 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 5 November 2024 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 5x - 15 = 45

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 9cm and 12cm

    Answer: 15cm
  4. 4. Ratio Sharing in a ratio

    Divide 240 in the ratio 2:3:3

    Answer: 60, 90 and 90
  5. 5. Statistics Mean

    Find the mean of: 7, 9, 13, 2

    Answer: 7.75

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