1から順に one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twentyからは(ハイフン)でつないで後ろにone~nineの数字を書けばおk 例えば21はtwentyone 30 thirty 40 forty 50 fifty 60 sixty 70 seventy 80 eighty 90 ninety 100