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Cornerstone · Grades 3–5 Keystones #1 4 April 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 4 April 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 8⁄12 + 1⁄12

    Answer: 3⁄4
  2. 2. Algebra Two-step equations

    Solve: 6x - 11 = 61

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 11cm

    Answer: 12.08cm
  4. 4. Ratio Sharing in a ratio

    Divide 130 in the ratio 2:2:1

    Answer: 52, 52 and 26
  5. 5. Statistics Mean

    Find the mean of: 16, 10, 5, 9, 5

    Answer: 9

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