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Cornerstone · Grades 3–5 Keystones #1 22 March 2019 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 22 March 2019 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 4⁄7 + 4⁄5

    Answer: 48⁄35
  2. 2. Algebra Two-step equations

    Solve: 5x - 7 = 13

    Answer: x = 4
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 7cm and b = 8cm

    Answer: 10.63cm
  4. 4. Ratio Sharing in a ratio

    Share 114 in the ratio 2:1

    Answer: 76 and 38
  5. 5. Statistics Mean

    Calculate the mean of: 27, 48, 14, 37, 47, 10

    Answer: 30.5

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