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Cornerstone · Grades 3–5 Keystones #1 20 August 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 20 August 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄7 + 5⁄8

    Answer: 67⁄56
  2. 2. Algebra Two-step equations

    Solve: 3x - 14 = 4

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

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

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

    Divide 133 in the ratio 4:1:2

    Answer: 76, 19 and 38
  5. 5. Statistics Mean

    Find the mean of: 9, 14, 19, 14, 12

    Answer: 13.6

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