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Cornerstone · Grades 3–5 Keystones #1 12 November 2024 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 12 November 2024 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄5 + 2⁄6

    Answer: 17⁄15
  2. 2. Algebra Two-step equations

    Solve: 3x + 11 = 23

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 16cm

    Answer: 20cm
  4. 4. Ratio Sharing in a ratio

    Divide 253 in the ratio 3:4:4

    Answer: 69, 92 and 92
  5. 5. Statistics Mean

    Calculate the mean of: 48, 40, 27, 33, 22, 41, 39

    Answer: 35.7

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