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Cornerstone · Grades 3–5 Keystones #1 29 May 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 29 May 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 5⁄8

    Answer: 31⁄24
  2. 2. Algebra Two-step equations

    Solve: 2x - 7 = 3

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

    Calculate the hypotenuse when a = 3cm and b = 5cm

    Answer: 5.83cm
  4. 4. Ratio Sharing in a ratio

    Share 54 in the ratio 2:1

    Answer: 36 and 18
  5. 5. Statistics Mean

    Calculate the mean of: 20, 41, 27, 19, 23, 28

    Answer: 26.3

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