读数词时，什么时候要加and ..

Question

如果由千到百时没有百，只有十或个，那么还要不要加and.
例如1，006
22，039
这些应该怎样读

Answer 1

到最后一个个位的时候
eighty seven thousand and eighty nine
two hundred and one
four hundred and four

只要用到几百后面带几十或几时候才加，其他都不加and
比如：
1508
one thousand,five hundred and eight
845，321，765
eight hundred and forty-five million, three hundred and twenty-one thousand,seven hundred and sixty-six
请注意第二个例子里面，用了三个and,
仔细揣摩一下， 就知道这其中的规则了．

Answer 2

百位后如果有数字就在百位后+and
210 two hundred and ten

百位后如果为0
如1200 one thousand and two hundred本回答被提问者采纳

Answer 3

凡是到最后一个个位的时候
321，456，765
three hundred and twenty-one million, four hundred and fifty-six thousand,seven hundred and sixty-six
但有零时要注意
300,000,001
three hundred million and one
百位后如果为0
如2500 two thousand and five hundred