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

  1. 1. Number Adding fractions

    Calculate: 2⁄7 + 1⁄7

    Answer: 3⁄7
  2. 2. Algebra Two-step equations

    Solve: 3x - 10 = 14

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 6cm

    Answer: 10cm
  4. 4. Ratio Sharing in a ratio

    Share 76 in the ratio 1:3

    Answer: 19 and 57
  5. 5. Statistics Mean

    Calculate the mean of: 39, 28, 34, 45, 19, 39, 12

    Answer: 30.9

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