# Chapter 1 - Whole Numbers - 1.2 Adding Whole Numbers - 1.2 Exercises: 42

$14,399 #### Work Step by Step$6871$+$7528$Start at the right of each number and add the ones digits$1$+$8$=$9$ones Write the 9 one in the ones column. Add the tens digits next.$7 + 2 = 9$Write the 9 tens in the tens column Add the hundreds digits next.$8 + 5 = 13$hundreds Regroup$13$hundreds as 1 thousand and 3 hundreds Write the 3 hundreds in the hundreds column. Write the 1 thousand in the thousands column. Add the thousands digits next including the regrouped 1.$1 + 6 + 7= 14$. Regroup the 14 thousands as 1 ten-thousand and 4 thousands. Write the 4 thousand in the thousands column. Write the 1 in the ten-thousand column. Separate each group of three digits with a comma. The sum of the two numbers is$14,399\$

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