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Cornerstone · Grades 3–5 Keystones #1 19 February 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 19 February 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 7⁄10 + 1⁄10

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 4x - 14 = 42

    Answer: x = 14
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 3cm and b = 12cm

    Answer: 12.37cm
  4. 4. Ratio Sharing in a ratio

    Divide 182 in the ratio 2:2:3

    Answer: 52, 52 and 78
  5. 5. Statistics Mean

    Find the mean of: 14, 11, 14, 19, 4

    Answer: 12.4

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