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

  1. 1. Number Adding fractions

    Calculate: 4⁄7 + 1⁄7

    Answer: 5⁄7
  2. 2. Algebra Two-step equations

    Solve: 4x + 15 = 59

    Answer: x = 11
  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

    Share 56 in the ratio 4:3

    Answer: 32 and 24
  5. 5. Statistics Mean

    Calculate the mean of: 24, 31, 6, 40, 30, 45, 14

    Answer: 27.1

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