66,700,000 67,000,000 70,000,000
Work Step by Step
To round, inspect the number to the right. Round up if greater than 4. $66,\underset\uparrow700,000$ round up to 67,000,000 $6\underset\uparrow6,700,000$ round up to 70,000,000
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.