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Cornerstone · Grades 3–5 Keystones #1 10 May 2022 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 10 May 2022 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 1⁄12 + 8⁄12

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

    Solve: 8x - 17 = 31

    Answer: x = 6
  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 80 in the ratio 3:2

    Answer: 48 and 32
  5. 5. Statistics Mean

    Calculate the mean of: 10, 18, 6, 20, 18, 31

    Answer: 17.2

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