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Cornerstone · Grades 3–5 Keystones #1 6 August 2021 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 6 August 2021 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄6 + 2⁄6

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

    Solve: 7x + 5 = 89

    Answer: x = 12
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 4cm and b = 13cm

    Answer: 13.6cm
  4. 4. Ratio Sharing in a ratio

    Divide 126 in the ratio 2:3:4

    Answer: 28, 42 and 56
  5. 5. Statistics Mean

    Find the mean of: 7, 7, 6

    Answer: 6.6666666666667

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