Final answer:
The use of Arabic numerals in other regions began through the spread of Islam and the influence of Muslim merchants. Arabic numerals made it easier to measure goods, convert money for trade, and facilitate commerce across different regions.
Step-by-step explanation:
The use of Arabic numerals in other regions began through a combination of factors, including the spread of Islam and the movement of Muslim merchants. Arabic numerals, which originated in India, were adopted by Muslims and became part of the Islamic faith. Their use made it easier to measure goods, convert money for trade, and facilitate commerce among different regions through a standardized system of numerals.