This document provides information on how to say various cardinal numbers in British English and American English, including numbers from one to one billion. It also discusses how to read ordinal numbers, fractions, percentages, and temperatures. For cardinal numbers like 101 and 154, Americans say "one hundred one" and "one hundred fifty-four" while Brits say "one hundred and one" and "one hundred and fifty-four". Millions and billions are the same in both varieties of English.