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Cornerstone · Grades 3–5 Keystones #1 27 August 2021 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 27 August 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄7 + 5⁄7

    Answer: 6⁄7
  2. 2. Algebra Two-step equations

    Solve: 8x - 5 = 35

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Divide 135 in the ratio 1:4:4

    Answer: 15, 60 and 60
  5. 5. Statistics Mean

    Find the mean of: 14, 15, 10

    Answer: 13

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