Final Answer:
To accommodate at least 10 accounts within the lowest level of subcategories, you would need three digits in your account numbers.
Step-by-step explanation:
In the context of numbering accounts in a chart of accounts, the process involves creating a hierarchical structure with major categories and two levels of subcategories. Each level of the category is represented by a digit. To ensure sufficient room for at least 10 accounts within the lowest level of subcategories, you need to have three digits for that level.
The first digit represents the major category, the second digit represents the first level of subcategory, and the third digit allows for the second level of subcategory. With three digits, you can have numbers ranging from 001 to 999, providing room for at least 10 accounts in the lowest level of subcategories.