Annotation rules for numbers and numerals need to be dealt with as a whole. So far, there are only some individual rules; these constitute the content of the present section. The proper representation of numbers and numerals is also discussed in the section on mathematical operations and intervals (see Section 11, "**Mathematical operations and intervals**").

The annotation of numerals written in words and those written in digits follow basically the same rules; exceptions are noted in appropriate places in the respective subsections (especially in Section 10.2.3, "Complex numerical expressions" and Section 10.2.4, "Decimals and fractions").