Can a mistake be corrected by another mistake?

Answer:

Yes, if they are compensating errors.

For example you might be trying to work out 50 plus 20 on your calculator, but by mistake you enter 90 instead of 50 for the first number. This would mean your answer would be incorrect. However, if you also made another mistake and entered minus instead of plus then you would end up with the right answer even though you had made two mistakes.

First answer by ChrisofKent. Last edit by ChrisofKent. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 1 [recommend question].