Final answer:
To write a mobile number in international format, start with the country code, omit leading zeros, and combine the country code and local number without spaces or dashes.
Step-by-step explanation:
To write a mobile number in international format, you need to follow a few guidelines. First, start with the country code, which is a numerical code assigned to each country. For example, the country code for the United States is +1. Next, omit any leading zeros from the local number. Finally, combine the country code and the local number without any spaces or dashes. Here's an example:
If the mobile number is: 0123456789 (in the local format), and the country code is +1 (for the United States), the international format would be +10123456789.