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Math K-Plus

# Example Of Adding Whole Numbers

## Learn How To Add Whole Numbers

Let's talk in some details about Adding Whole Numbers in real life. If you have 99 pennies, you need one more penny to make a \$1.00. Now you find one penny on side walk. You have 100 pennies or one dollar (\$1.00). Now let's take the next step and show mathematically how to do what we just talked about.

 Step 1 First, state the problem. We have 99 pennies and want to add 1 penny to the 99. Columns  CBA        99   +1 ——— Step 2 Next we add the numbers in column A: 9 + 1 which is 10. From 10 bring the right most number down (0) in column A and regroup / carry the (1) from the 10 to column B. Columns  CBA   1    99   +1 ———    0 Step 3 Now add the regrouped/carried 1 in column B to the 9 in column B. Again you get 10. Place the 0 from ten in column B of the answer and carry the 1 of the ten to column C (this is called carry addition or regroup addition). Columns  CBA 1      99   +1 ———   00 Step 4 The third and last column, C, has only 1 which was carried in the Step 3 math operation. The final problem answer is 100 pennies or \$1.00. Columns  CBA        99   +1 ———  100

To make all of this much clearer, try our First Grade Addition Calculator. It provides detailed answers to a math problem of your choice with step by step detailed explanations. If this is to easy for you, there is a link to the next higher level of addition.

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