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

Five GCSE retrieval questions · 1 May 2020 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄11 + 1⁄11

    Answer: 4⁄11
  2. 2. Algebra Two-step equations

    Solve: 6x - 13 = 77

    Answer: x = 15
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 80 in the ratio 1:4

    Answer: 16 and 64
  5. 5. Statistics Mean

    Calculate the mean of: 47, 25, 46, 40, 40, 32, 44, 19

    Answer: 36.6

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