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

Five GCSE retrieval questions · 1 October 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 3⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 6x - 13 = 17

    Answer: x = 5
  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 88 in the ratio 1:3:4

    Answer: 11, 33 and 44
  5. 5. Statistics Mean

    Calculate the mean of: 47, 43, 47, 49, 49, 30

    Answer: 44.2

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