## Basic College Mathematics (9th Edition)

$17,611$
$9625$ + $7986$ Start at the right of each number Add the ones digits $5$ + $6$ = $11$ ones Regroup the 11 ones as 1 ten and 1 one Write the 1 one in the ones column. Write the 1 ten in the tens column. Add the tens digits next including the regrouped 1. $1$ + $2$ + $8$ = $11$ tens Regroup the 11 tens as 1 hundred and 1 ten Write the 1 ten in the tens column. Write the 1 hundred in the hundreds column. Add the hundreds digits next including the regrouped 1. $1$ + $6$ + $9$ = $16$ hundreds Regroup the 16 hundreds as 1 thousand and 6 hundreds Write the 6 hundreds in the hundreds column. Write the 1 thousand in the thousands column. Add the thousands digits next including the regrouped 1. $1$ + $9$ + $7$ = $17$ thousands. Regroup the 17 thousands as 1 ten-thousand and 7 thousands. Write the 7 thousands in the thousands column. Write the 1 ten-thousand in the ten-thousand column. Add the ten-thousands digits next which is the regrouped 1. 1 ten-thousand Separate each group of three digits with a comma. The sum of the two numbers is $17,611$.