What is 1000-7?

1000-7 is a mathematical expression representing the subtraction of 7 from 1000. The answer to this expression is 993. This type of calculation is known as a simple arithmetic operation, which involves two numbers and an arithmetic operator. In this case, the arithmetic operator is the subtraction sign (-) and the two numbers are 1000 and 7. The result of this operation can be easily obtained by subtracting 7 from 1000, which leaves us with the final answer of 993.