Work Step by Step
$\sqrt[y] x$Estimate $522+785$ using front end rounding. $522\approx500$ $785\approx800$ $500+800=1300$, so 1307 could be correct.
You can help us out by revising, improving and updating this answer.Update this answer
After 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.