Основные математические понятия в английском языке. Прокошева И.И. - 13 стр.

the words inch and ounce. The third method dates back to the Babylonians, who used
fractions with denominators which were powers of 60; the Greeks also this method in
scientific work.
     It was not until Simon Stevin (1548-1620) published his essay on decimal
fractions in 1585 that the third method, with denominators which all powers of 10,
became generally adopted. Stevin was an important government official in the
Netherlands in the time of the struggle against Spain. Many authors had used decimal
fractions in particular problems, and decimal point first appeared in print as early as
in 1492, but Stevin was the originator of general rules for the use of decimal
fractions.

   4.1.1Choose the best sentences ending which is true to the text:
   1.The Egyptians used
      a. the second method of dealing with fractions.
      b. the first method of dealing with fractions and developed a high degree of
         skill in it.
      c. fractions called unciae.
      d. fractions with denominators which were powers of sixty.
   2.The third method dates back to
      a. The Roman period.
      b. 1585 when Simon Stevin published his essay on decimal fractions.
      c. Ancient times
      d. The Babylonians, who used fractions with denominators which were
         powers of sixty

   4.1.2 Choose the best reply to the sentences given.
   1. What was Stevin’s contribution in mathematics?
      a. He used decimal fractions in particular problems.
      b. He was the originator of general rules for the use of decimal fractions.
      c. He used decimal fractions in particular problems.
      d. He developed the first method of dealing with fractions.
   2. What times does the third method date back to?
      a. It dates back to ancient Rome.
      b. It dates back to the fourteenth century
      c. It dates back to Babylonians.
      d. It dates back to the twentieth century.

   4.1.3 Rearrange the words to make sentences.
   1.with three are methods of dealing There fractions.
   2. method The used Egyptians the first.
   3. in print decimal as early in as 1492 point appeared The first.

       4.2 Assignments
4.2.1. Memorize the following words and word-groups:
decimal fraction           [`desIm(q)l`frxkS(q)n]   Десятичная дробь

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