Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 1 - Whole Numbers - 1.2 Adding Whole Numbers - 1.2 Exercises: 47

Answer

$15,954$

Work Step by Step

$9056$ + $78$ + $6089$ + $731$ Start at the right of each number Add the ones digits $6$ + $8$ + $9$ + $1$ = $24$ ones Regroup the 24 ones as 2 tens and 4 ones Write the 4 ones in the ones column. Write the 2 tens in the tens column. Add the tens digits next including the regrouped 2. $2$ + $5$ + $7$ + $8$ + $3$ = $25$ tens Regroup the 25 tens as 2 hundreds and 5 tens Write the 5 tens in the tens column. Write the 2 hundreds in the hundreds column Add the hundreds digits next including the regrouped 2. $2$ + $0$ + $0$ + $7$ = $9$ hundreds Write the 9 hundreds in the hundreds column. Add the thousands digits next. $9$ + $6$ = $15$ thousands. Regroup the 15 thousands as 1 ten-thousand and 5 thousands. Write the 5 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 $15,954$.
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