1、基数词:One, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve, twenty, thirty, forty, fifty sixty, seventy, eighty, ninety, a hundred, thousand, ten thousand序数词:First, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, twentieth，thirtieth，fortieth。
2、fiftieth，sixtieth，seventieth。
3、eightieth，ninetieth,hundredth, thousandth, ten thousandth。
