## Basic College Mathematics (10th Edition)

Published by Pearson

# Chapter 1 - Whole Numbers - 1.2 Adding Whole Numbers - 1.2 Exercises - Page 21: 83

#### Answer

$970$ feet

#### Work Step by Step

The problem asks for a total. A total is the answer to an addition problem. Therefore, we will add the four numbers (325, 160, 325, 160) which represent the distance around the track. $325 + 160 + 325 + 160$ Start at the right of each number and add the ones digits $5 + 0 + 5 + 0 = 10$ ones Regroup the $10$ ones as $1$ ten and $0$ ones Write the $0$ ones in the ones column. Write the $1$ ten in the tens column Add the tens column next including the regrouped $1$ $1 + 2 + 6 + 2 + 6 = 17$ tens Regroup the 17 tens as $1$ hundred and $7$ tens Write the $7$ tens in the tens column. Write the $1$ hundred in the hundreds column Add the hundreds column next including the regrouped $1$. $1 + 3 + 1 + 3 + 1 = 9$ hundreds Write the $9$ in the hundreds column $970$ The sum of the three numbers is $970$ The distance is $970$ feet (ft).

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