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Add Two 2-digit Numbers - Within 100
To add two digit numbers, first align the numbers so that place values are lined up.
Add ones regroup if needed and then add tens.
For example: Let's find the sum of 38 and 35.
Align the numbers and add ones. Regroup if needed.
| 1 | ||
| 3 | 8 | |
|
|
3 | 5 |
| 3 |
Now, add the tens.
| 1 | ||
| 3 | 8 | |
|
|
3 | 5 |
| 7 | 3 |
The sum of 38 and 35 is 73.
