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Cornerstone · Grades 3–5 Keystones #1 2 August 2020 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 August 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 2⁄5 + 2⁄5

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

    Solve: 6x + 3 = 45

    Answer: x = 7
  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 140 in the ratio 4:3

    Answer: 80 and 60
  5. 5. Statistics Mean

    Calculate the mean of: 19, 8, 41, 26, 34, 49

    Answer: 29.5

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