Answer
101
Work Step by Step
Given that the difference between 552 and 451 is 101 we use addition to check the answer to a subtraction problem.
451+101=552
Check
The number needed to complete the check is 101.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.