(1215-987):19

I don't know the exact answer, but I can help you with the process of solving a subtraction problem.

To find the difference between 1215 and 987, you subtract 987 from 1215.

Starting with the ones place, 5 - 7 is -2. Since we can't have a negative digit in the ones place, we borrow from the tens place.

In the tens place, we have 11 - 8, which equals 3.

Finally, in the hundreds place, we have 1 - 9, which equals -8. Again, we borrow from the thousands place.

In the thousands place, we have 11 - 0, which equals 11.

Putting it all together, the answer is 228.