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Cornerstone · Grades 3–5 Keystones #1 21 April 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 21 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄6 + 2⁄4

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

    Solve: 3x + 7 = 25

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

    Calculate the hypotenuse when a = 7cm and b = 9cm

    Answer: 11.4cm
  4. 4. Ratio Sharing in a ratio

    Share 45 in the ratio 2:3

    Answer: 18 and 27
  5. 5. Statistics Mean

    Calculate the mean of: 16, 31, 15, 35, 19, 11

    Answer: 21.2

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