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Cornerstone · Grades 3–5 Keystones #1 2 July 2015 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 2 July 2015 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 2⁄3 + 1⁄6

    Answer: 5⁄6
  2. 2. Algebra Two-step equations

    Solve: 4x + 14 = 42

    Answer: x = 7
  3. 3. Geometry Pythagoras — hypotenuse

    Calculate the hypotenuse when a = 8cm and b = 4cm. Give your answer to 2 decimal places

    Answer: 8.94cm
  4. 4. Ratio Sharing in a ratio

    Share 70 in the ratio 2:3

    Answer: 28 and 42
  5. 5. Statistics Mean

    Find the mean of: 10, 13, 4

    Answer: 9

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