Numbers: ordinal and cardinal.
The numbers
1 – One 2 – Two 3 – Three 4 – Four 5 – Five
6 – Six 7 – Seven 8 – Eight 9 – Nine 10 – Ten 11 – Eleven 12 – Twelve
A partir del número 13 la formación de los números es regular.
Con algunas excepciones, se trata del Número + teen.
13 – Thirteen 14 – Fourteen 15 – Fifteen 16 – Sixteen 17 – Seventeen 18 – Eighteen 19 – Nineteen
Lo mismo sucede con los números redondos, 20,30,40,50,
etc.
Con algunas excepciones, se foman con Número + ty.
20 – Twenty 30 –
Thirty
40 –Forty 50- Fifty60 – Sixto 70 – Seventy 80 – Eighty 90 – Ninety
Para seguir formando números después del
100 solo es cuestión de combinar
101 – One hundred (and) one 110 – One hundred (and) ten
125 – One hundred (and) twenty-five 163 – One hundred (and) sixty –
three
Y los siguientes centenares,
siguiendo el mismo modelo.
200 – Two hundred 300 – Three
hundred
650 – Six hundred (and) fifty 782 – Seven hundred (and)
eighty-two
Y ahora llegamos a 1000 = Thousand
1,000 – One thousand 2,000
– Two thousand3,510 – Three thousand, five hundred and ten
1,000,000 – One million
4,650,000 – Four millions, six hundred fifty thousand
Como ves, las abreviaturas utilizan las últimas dos letras del ordinal–no siempre es “th”. En el caso de first, second y third la abreviatura se forma con “st”, “nd” y “rd” respectivamente, así tenemos 1st, 2nd, 3rd etc.
¡Recuerda! Se ponen las últimas dos letras del ordinal para formar la abreviatura, y puede variar.
Los ordinales de 10 a 20 ponen una “th” y hay unos pequeños cambios de ortografía.
eleventh = 11th twelfth = 12th thirteenth = 13th
fourteenth = 14th fifteenth = 15th sixteenth = 16th
seventeenth = 17th eighteenth = 18th nineteenth = 19th
twentieth = 20th
Y más allá se repite todo desde first a ninth, después del número más grande. Así tenemos…
21st = twenty-first 22nd = twenty-second
23rd = twenty-third 24th = twenty-fourth
35th = thirty-fifth 47th = forty-seventh
66th = sixty-sixth 78th = seventy-eighth
89th = eighty-ninth 98th = ninety-eighth
99th = ninetyninth 100th = hundredth
101st = hundred and first
1). Escribe los siguientes números.
a) one hundred and fifty-fourb) two thousand, five hundred and two
c) ten thousand, three hundred and twenty
d) five hundred thousand, six hundred
e) two million, one hundred and four thousand and one
f) one million, six hundred and thirty-eight thousand, five hundred and sixteen
g) twelve million, three hundred thousand, four hundred and two
h) seven hundred and eight million, two hundred and twenty-six thousand and fifty.
i) eleven million, seven hundred and thirty-four thousand, two hundred and sixty-one
j) ten million, one hundred and forty-four thousand, two hundred and six


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