The expression "48x10" represents a multiplication problem where the number 48 is multiplied by 10. This operation is a basic arithmetic calculation that results in the total amount of 480. Multiplication is one of the four fundamental operations in mathematics, alongside addition, subtraction, and division. In practical terms, multiplying by 10 is straightforward, as it simply involves adding a zero to the end of the number. For example, if you have 48 items and you want to find out how many you would have if you had 10 times that amount, you would calculate 48x10 to get 480.