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

  1. 1. Number Adding fractions

    Calculate: 7⁄10 + 1⁄10

    Answer: 4⁄5
  2. 2. Algebra Two-step equations

    Solve: 4x + 15 = 39

    Answer: x = 6
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 5cm and b = 13cm

    Answer: 13.93cm
  4. 4. Ratio Sharing in a ratio

    Share 96 in the ratio 1:2

    Answer: 32 and 64
  5. 5. Statistics Mean

    Find the mean of: 5, 3, 17, 13, 18

    Answer: 11.2

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