101 one hundred (and ) one
200 two hundred
998 nine hundred ( and ) ninety eight
A：How many people are killed in the terrorists' attacking at America?
B: That's nine hundred and ninety eight, exactly.
A: Woo, you must be joking. How can you get such an accurate number?
B: Ha, ha... surely I am joking. You silly goose.
1001 a/one thousand (and) one
2232 two thousand two hundred (and) thirty two
nine hundred billion seven hundred thirty two million two hundred sixty six forty three
A：Can you tell me exactly the numbers of the whole people in our country?
B：One billion four hundred thirtytwo million two hundred sixty six forty three.
A：Thank you very much.