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Cornerstone · Grades 3–5 Keystones #1 30 December 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 30 December 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 5⁄8 + 5⁄7

    Answer: 75⁄56
  2. 2. Algebra Two-step equations

    Solve: 4x + 3 = 43

    Answer: x = 10
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 12cm

    Answer: 13.42cm
  4. 4. Ratio Sharing in a ratio

    Share 36 in the ratio 2:1

    Answer: 24 and 12
  5. 5. Statistics Mean

    Calculate the mean of: 26, 37, 14, 38, 34, 25

    Answer: 29

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