Математика. Числительные. Аристова В.М. - 9 стр.

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In scientifical and technical texts the authors prefer writing large numbers not with
commas, but leaving a space after every three figures beginning from the end: 21 000
254; 3 560 021.
Since commas are used to separate thousands in figures do not put figures next to
each other — it may be taken as part of the same number: "The hall can hold 700, 150
of whom have to sit on folding chairs". Rephrase as: "The hall can hold 700, of whom
150 …".
In greater numbers
1
there does not exist strict quantitative unification concerning
different countries. So, dealing with this or that greater number it is to be kept in mind
that:
in: the USA Great Britain English units Russian units
billion 10
9
10
12
milliard миллиард
trillion 10
12
10
18
quintillion триллион
quadrillion 10
15
10
24
septillion квадриллион
quintillion 10
18
10
30
nonillion квинтиллион
sextillion 10
21
10
21
sextillion секстиллион
octillion 10
27
10
27
octillion октиллион
nonillion 10
30
— — нониллион
Numbers in figures or words.
In scientific, technical, statistical material numbers are written as figures. In other
types of texts the general rule is to write small numbers as words and large numbers as
figures: Seven students were present. During the earthquake 4 653 people perished. Do
not mix figures and words in one phrase: "from 10 to 30" but not: "from ten to 30".
If large numbers are used at the beginning of the sentence they are written as
words: "Four hundred animals died in the flood last year". In case the number is long it
must be used in the end of the sentence: "The floods killed 400 animals".
1
The data are taken from English-Russian Polytechnical Dictionary - M., 1971; Orlov V.B. at al. Russian -
English - German - French Mathematical Dictionary - M., 1987. 
      In scientifical and technical texts the authors prefer writing large numbers not with
commas, but leaving a space after every three figures beginning from the end: 21 000
254; 3 560 021.
      Since commas are used to separate thousands in figures do not put figures next to
each other — it may be taken as part of the same number: "The hall can hold 700, 150
of whom have to sit on folding chairs". Rephrase as: "The hall can hold 700, of whom
150         ".
      In greater numbers1 there does not exist strict quantitative unification concerning
different countries. So, dealing with this or that greater number it is to be kept in mind
that:
            in:               the USA             Great Britain         English units          Russian units
billion                           109                   1012                milliard             миллиард
trillion                         1012                   1018              quintillion            триллион
quadrillion                      1015                   1024               septillion         квадриллион
quintillion                      1018                   1030               nonillion          квинтиллион
sextillion                       1021                   1021               sextillion          секстиллион
octillion                        1027                   1027                octillion           октиллион
nonillion                        1030                    —                     —                нониллион


      Numbers in figures or words.
      In scientific, technical, statistical material numbers are written as figures. In other
types of texts the general rule is to write small numbers as words and large numbers as
figures: Seven students were present. During the earthquake 4 653 people perished. Do
not mix figures and words in one phrase: "from 10 to 30" but not: "from ten to 30".
      If large numbers are used at the beginning of the sentence they are written as
words: "Four hundred animals died in the flood last year". In case the number is long it
must be used in the end of the sentence: "The floods killed 400 animals".

      1
          The data are taken from English-Russian Polytechnical Dictionary - M., 1971; Orlov V.B. at al. Russian -
English - German - French Mathematical Dictionary - M., 1987.

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