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Cornerstone · Grades 3–5 Keystones #1 18 November 2024 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 18 November 2024 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄5 + 4⁄8

    Answer: 11⁄10
  2. 2. Algebra Two-step equations

    Solve: 8x - 13 = 35

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 5cm and 12cm

    Answer: 13cm
  4. 4. Ratio Sharing in a ratio

    Share 78 in the ratio 1:2

    Answer: 26 and 52
  5. 5. Statistics Mean

    Calculate the mean of: 44, 31, 32, 21, 10, 26, 17, 38

    Answer: 27.4

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