Alternatively, modular arithmetic is convenient for calculating the check digit using modulus 11. The remainder of this sum when it is divided by 11 (i.e. its value modulo 11), is computed. This remainder plus the check digit must equal either 0 or 11. Therefore, the check digit is (11 minus the remainder of the sum of the products modulo 11) modulo 11. Taking the remainder modulo 11 a second time accounts for the possibility that the first remainder is 0. Without the second modulo operation the calculation could end up with 11 – 0 = 11 which is invalid. (Strictly speaking the first "modulo 11" is unneeded, but it may be considered to simplify the calculation.)

_{The 10-digit ISBN format was developed by the International Organization for Standardization (ISO) and was published in 1970 as international standard ISO 2108.[4][5] The United Kingdom continued to use the 9-digit SBN code until 1974. ISO has appointed the International ISBN Agency as the registration authority for ISBN worldwide and the ISBN Standard is developed under the control of ISO Technical Committee 46/Subcommittee 9 TC 46/SC 9. The ISO on-line facility only refers back to 1978.[9] }

There’s an old Steve Martin joke about how to make a million dollars which starts, “First, get a million dollars…” That’s the key to this trick, too: First, get a bunch of numbers. Here’s a file with 1,197 numbers in it. Now import or paste those numbers into a thread so that the numbers appear in the right place. If you need two matching numbers, just import it twice.

_{The next step is to create the simple Excel workbook that contains the ticket numbers. Open a blank Excel sheet. Using Figure B as a guide, create the ticket numbering sheet and save it, making sure to note the new workbook's name and location. As we discussed earlier, the Excel workbook stores the ticket numbers. In this example, we'll create 11 tickets numbered 100 through 110. You'll need to update the ticket values for each merge. }

Generally in Iran and especially in the capital Tehran odd numbers are all on one side and the even numbers opposite along streets. Infrequently, this style confuses people because this is not how it works everywhere in the city and sometimes the numbers get intertwined with each other. In the rural parts, some houses have no number at all and some have their owner's details as the number instead. In some cases, using the number 13 is skipped replacing it with equivalents such as: 12+1 or 14-1

#### Number one "oneself" is from 1704 (mock-Italian form numero uno attested from 1973); the biblical Book of Numbers (c.1400, Latin Numeri, Greek Arithmoi) so called because it begins with a census of the Israelites. Slang number one and number two for "urination" and "defecation" attested from 1902. Number cruncher is 1966, of machines; 1971, of persons. To get or have (someone's) number "have someone figured out" is attested from 1853. The numbers "illegal lottery" is from 1897, American English.

With outline numbering you can define different bullet styles for the different levels of a bullet list. Use the Bullets tab of the Numbering Style dialog box (not shown) to select the basic style. Return to the Options tab to customize the bullet for each indent level. Here you can set bullets to any character. See the Graphics tab for more bullets.