由一到三十一这三十一个数中 找出商为五的数 并写出规律

因为21—29.31这十个数都是在twenty后加上1—9的数 所以就21个不重复的数

eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty
first
second
third
forth
fifth
sixth
seventh
eighth
ninth
tenth
eleventh
twelfth
thirteenth
fourteenth
fifteenth
sixteenth
seventeenth
eighteenth
ninteenth
twentieth
twenty-first
twenty-second
twenty-third
twenty-fourth
twenty-fifth
twenty-sixth
twenty-seventh
twenty-eighth
twenty-ninth
thirtieth
thirty-first

one first
two second
three.third
four.fourth
five.fifth
six.sixth
seven.seventh
eight.eighth
nine.ninth
ten.tenth
eleven.eleventh
twelve.twelfth
thirteen.thirteenth
fourteen.fourteenth
fifteen.fifteenth
sixteen.sixteenth
seventeen.seventeenth
eighteen.eighteenth
nineteen.nineteenth
twenty.twentieth
twenty-one.twenty-first
twenty-two.twenty-second
twenty-three.twenty-third
twenty-four.twenty-fourth
twenty-five.twenty-fifth
twenty-six twenty-sixth
twenty-seven.twenty-seventh
twenty-eight.twenty-eighth
twenty-nine.twenty-ninth
thirty.thirtieth
thirty-one thirty-firs