Basic College Mathematics (9th Edition)

Published by Pearson

Chapter 1 - Whole Numbers - 1.2 Adding Whole Numbers - 1.2 Exercises: 43

Answer

$11,624$

Work Step by Step

$7896$ + $3728$ Start at the right of each number Add the ones digits $6$ + $8$ = $14$ ones Regroup 14 ones as 1 ten and 4 ones. Write the 4 ones in the ones column. Write the 1 ten in the tens column. Add the tens digits next including the regrouped 1. $1$+ $9$ +$2$ = $12$ tens Regroup the 12 tens as 1 hundred and 2 tens Write the 2 tens in the tens column. Write the 1 hundred in the hundreds column. Add the hundreds digits next including the regrouped 1. $1$ +$8$+ $7$=$16$ hundreds Regroup 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. $1$+$7$+$3$=$11$ thousands. Regroup the 11 thousands as 1 ten-thousand and 1 thousand. Write the 1 thousand 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 $11,624$.

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