12000÷12000•555

To solve this expression, you should follow the order of operations, which is known as PEMDAS (Parentheses, Exponents, Multiplication and Division - performed from left to right, and Addition and Subtraction - performed from left to right).

First, there are no parentheses or exponents in this expression, so we move on to multiplication and division.

12000 ÷ 12000 = 1

Next, we multiply the result by 555:

1 • 555 = 555

Therefore, 12000 ÷ 12000 • 555 is equal to 555.