Numerals Number Cardinal Ordinal Ordinal Abbreviations 1 one first 1st 2 two second 2nd 3 three third 3rd 4 four fourth 4th 5 five fifth 5th 6 six sixth 6th 7 seven seventh 7th 8 eight eighth 8th 9 nine ninth 9th 10 ten tenth 10th 11 eleven eleventh 11th 12 twelve twelfth 12th 13 thirteen thirteenth 13th 14 fourteen fourteenth 14th 15 fifteen fifteenth 15th 16 sixteen sixteenth 16th 17 seventeen seventeenth 17th 18 eighteen eighteenth 18th 19 nineteen nineteenth 19th 20 twenty twentieth 20th 22 twenty-two twenty-second 22nd 25 twenty-five twenty-fifth 25th 30 thirty thirtieth 30th 40 forty fortieth 40th 50 fifty fiftieth 50th 60 sixty sixtieth 60th 70 seventy seventieth 70th 80 eighty eightieth 80th 90 ninety ninetieth 90th 100 one hundred one hundredth 100th 125 one hundred twenty-five one hundred twenty-fifth 125th     Cardinal numbers Are also known as "counting numbers" and they show the number of certain items. Cardinal numbers tell us "how many." CARDINAL numerals include words like:  zero, one, two, 3, fifty-six, 100, a thousand We have two cats. There are 12 birds. He is six years old today.     Ordinal numbers Are used to tell the order of things. They tell us level or position in a group. They correspond to the question starting with the word “Which?” ORDINAL numerals include  first, 2nd, third, fourth, 500th  I am third in ...