## Basic College Mathematics (9th Edition)

$2109$ meters
To find the distance around the entire farm, we will add the four sides (465, 573, 498, 573) $465 + 573 + 498 + 573$ Start at the right of each number and add the ones digits $5 + 3 + 8 + 3= 19$ ones Regroup the $19$ ones as $1$ ten and $9$ ones Write the $9$ ones in the ones column. Write the $1$ ten in the tens column Add the tens column next including the regrouped $1$ $1 + 6 + 7 + 9 + 7 = 30$ tens Regroup the $30$ tens as $3$ hundreds and $0$ tens Write the $0$ tens in the tens column. Write the $3$ hundreds in the hundreds column Add the hundreds column next including the regrouped $3$. $3 + 4 + 5 + 4 + 5 = 21$ Regroup the $21$ hundreds as $2$ thousands and $1$ hundred Write the $1$ hundred in the hundreds column Write the $2$ thousands in the thousands column. Add the thousands column next which is the regrouped $2$ $2$ The sum of the three numbers is $2109$ The distance is $2109$ meters