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  • ·  Decimals

Next introduce the words for the decimals:

  • 0.X – tenth(s)
  • 0.0X – hundredth(s)
  • 0.00X – thousandth(s)
  • 0.000X – ten thousandth(s)
  • 0.0000X – hundred thousandth(s)
  • 0.00000X - millionth(s)

All decimals follow the singular-plural system for English nouns in that the number is spoken as the digit followed by the name of the decimal with any decimal larger than one taking the plural ­–s marker. A period is placed between the whole number and the decimal. For example:

  • 0.1 – one tenth
  • 0.2 – two tenths
  • 0.01 – one hundredth, one one-hundredth
  • 0.33 – thirty-three hundredths
  • 0.001 – one thousandths, one one thousandth
  • 0.654321 – six hundred fifty-four thousand three hundred twenty-one millionths

Decimals may also be spoken as whole number-point-digits. Zeros are spoken as zero or oh. For example:

  • 0.1 – point one, zero point one, oh point one
  • 1.25 – one point two five
  • 6.425 – six point four two five
  • 2.1368 two point one three six eight
  • 1.057 – one point oh five seven
  • 4.0098 – four point zero zero nine eight
  • ·  Fractions

Finally teach the ESL students how to form fractions in English. The numerator (the top number) is spoken as a cardinal number and the denominator (the bottom number) as an ordinal number. However, half is used in place of second and sometimes quarter in place of fourth. For fractions in which the numerator is larger than one, the denominator takes the plural -s suffix. English fractions are also written with a hyphen between the numerator and denominator. For example:

  • 1/2 – one-half
  • 1/3 – one-third
  • 2/3 – two-thirds
  • 1/4 – one-fourth, one-quarter
  • 4/5 – four-fifths
  • 99/100 – ninety-nine one hundredths, ninety-nine hundredths

Fractions may also be spoken as cardinal number-over-cardinal number. For example:

  • 1/2 – one over two
  • 1/3 – one over three
  • 2/3 – two over three
  • 1/4 – one over four
  • 4/5 – four over five
  • 99/100 – ninety-nine over one hundred

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