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Cornerstone · Grades 3–5 Keystones #1 25 June 2022 Skills week 1 of 7
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Five GCSE retrieval questions · 25 June 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 1⁄8

    Answer: 1⁄2
  2. 2. Algebra Two-step equations

    Solve: 6x - 6 = 48

    Answer: x = 9
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 12cm

    Answer: 12.65cm
  4. 4. Ratio Sharing in a ratio

    Divide 88 in the ratio 3:1:4

    Answer: 33, 11 and 44
  5. 5. Statistics Mean

    Find the mean of: 15, 14, 6

    Answer: 11.666666666667

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