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Cornerstone · Grades 3–5 Keystones #1 19 March 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 19 March 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Calculate: 3⁄8 + 4⁄8

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 4x + 9 = 29

    Answer: x = 5
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 6cm and b = 9cm

    Answer: 10.82cm
  4. 4. Ratio Sharing in a ratio

    Share 50 in the ratio 1:4

    Answer: 10 and 40
  5. 5. Statistics Mean

    Calculate the mean of: 50, 6, 46, 5, 29, 18, 24, 44

    Answer: 27.8

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