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

  1. 1. Number Adding fractions

    Add: 2⁄4 + 4⁄7

    Answer: 15⁄14
  2. 2. Algebra Two-step equations

    Solve: 6x + 14 = 38

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 3cm and 4cm

    Answer: 5cm
  4. 4. Ratio Sharing in a ratio

    Divide 240 in the ratio 4:3:1

    Answer: 120, 90 and 30
  5. 5. Statistics Mean

    Find the mean of: 6, 20, 11

    Answer: 12.333333333333

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