# Chapter 1 - Review - Page 91: 48

227,000,000

#### Work Step by Step

$820,918,446\approx821,000,000\ \longrightarrow$hundred-thousands position is $\geq$5, round up $593,688,638\approx594,000,000\ \longrightarrow$hundred-thousands position is $\geq$5, round up $\ \ \ \overset7/\!\!8\overset{11}/\!\!\!2\overset{11}1,000,000$ $\underline{-5\,9\,4,000,000}$ $\ \ \ 2\,2\,7,000,000$

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.