DECIMAL NUMBER ADDITION

Concept for Adding Numbers with Decimals: Use addition to combine quantities, or find a total, or a sum. The answer to an addition equation is called the sum. Follow these steps to add whole numbers.

Steps for Adding Numbers with Decimals

Step 1 | Arrange the numbers being added so that the larger number is on top.
Step 2 | Arrange the numbers being added so the decimal points are aligned.
Step 3 | If the number of decimals (digits to the right of the decimal point) is not the same in both the numbers being added, equalize the number of decimals by adding zeros to the right of the number with the fewest decimals until it has the same number of decimals as the other number.
Step 4 | Start with the column furthest to the right. Add the numbers in that column, placing the results underneath the Results Line in that column. If that column of digits has a sum greater than 9, carry to the next column on the left.
Step 5 | Continuing from right to left, add the numbers in each column, placing the results underneath the Results Line in that column.. Whenever a column of digits has a sum greater than 9, carry to the next column on the left.

Example of Adding Numbers with Decimals: Combine 8.002 and 50.3

Step 1 | Arrange the numbers being added so the larger number is on top. | 50.3 8.002
Step 2 | Arrange the numbers being added so the decimal points are aligned. | 50.3 +8.002
Step 3 | If the number of decimals (digits to the right of the decimal point) is not the same in both the numbers being added, equalize the number of decimals by adding zeros to the right of the number with the fewest decimals until it has the same number of decimals as the other number. | 50.3 00 +8.002
Step 4 | Start with the column furthest to the right. Add the numbers in that column, placing the results underneath the Results Line in that column. If that column of digits has a sum greater than 9, carry to the next column on the left. | 50.30 0 +8.00 2 2
Step 5 | Continuing from right to left, add the numbers in each column, placing the results underneath the Results Line in that column. Whenever a column of digits has a sum greater than 9, carry to the next column on the left. | 50.3 0 0 +8.0 0 2 0 2
| Working from right to left, add the numbers in each column, placing the results underneath the Results Line in that column. | 50.3 0 0 +8.0 0 2 .3 02
| Working from right to left, add the numbers in each column, placing the results underneath the Results Line in that column. | 5 0.3 0 0 +8.0 0 2 8.302
| Working from right to left, add the numbers in each column, placing the results underneath the Results Line in that column. | 5 0.3 0 0 +8.0 0 2 5 8.302
| 8.002 combined with 50.3 equals 58.302 | 5 0.3 0 0 +8.0 0 2 58.302