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

Five GCSE retrieval questions · 3 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 6⁄12 + 5⁄12

    Answer: 11⁄12
  2. 2. Algebra Two-step equations

    Solve: 5x + 13 = 43

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

    Calculate the hypotenuse when a = 8cm and b = 12cm

    Answer: 14.42cm
  4. 4. Ratio Sharing in a ratio

    Divide 90 in the ratio 4:2:3

    Answer: 40, 20 and 30
  5. 5. Statistics Mean

    Calculate the mean of: 16, 12, 36, 16, 36, 45

    Answer: 26.8

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