What is the result of 30-12?

To determine the result of 30 minus 12, you perform a simple subtraction calculation. You start with 30 and subtract 12 from it.

When you take away 12 from 30, you can think of it as removing 10 and then 2:

1. Subtracting 10 from 30 gives you 20.
2. Subtracting the remaining 2 from 20 results in 18.

Thus, the final answer to 30 minus 12 is 18. This calculation follows the basic principles of arithmetic, where subtraction is the operation of finding the difference between two numbers. The concept of subtraction can also be visualized on a number line, where you would move 12 units to the left from 30, landing on 18.