numbers 100 200 1,000 1,100 1,357 2,300 100,000 1,000,0000 1,000,000,000 1,000,000,000,000 a hundred or one hundred two hundred (not two hundreds) a/one thousand a/one thousand one hundred or eleven hundred a/one thousand three hundred and fifty-seven or thirteen hundred and fifty-seven two thousand three hundred a/one hundred thousand a/one million a/one billion a/one trillion