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Cornerstone · Grades 3–5 Keystones #1 12 June 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 12 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 4⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x + 3 = 27

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

    Calculate the hypotenuse when a = 12cm and b = 10cm

    Answer: 15.62cm
  4. 4. Ratio Sharing in a ratio

    Divide 98 in the ratio 2:1:4

    Answer: 28, 14 and 56
  5. 5. Statistics Mean

    Find the mean of: 16, 12, 4, 17, 12

    Answer: 12.2

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