책 Top Notch 기초 A - 단원 4 - 레슨 3

the number 21; the number of days in three weeks

스물하나, 21

the number 22; the number of players on two soccer teams

스물둘

the number 23; the number of pairs of chromosomes in the human body

the number 24; the number of hours in a day

the number 25; the number we get when we multiply five by five

the number 26; the number of English alphabets

the number 27; the number we get when we multiply three by seven

the number 28; the number we get when we multiply fourteen by two

the number 29; the number that is the last year in a person's twenties

the number 30

서른

the number 31; the number of days in January, March, May, July, August, October, and December

서른하나

the number 32; the number of pieces in a game of chess

서른 둘

the number 40

사십

the number 50

오십

the number 60

육십

the number 70

칠십, 70

the number 80

여든, 80

the number 90

아흔, 90

the number 100

백

the number of years in a century plus one

백하나, 101