Add Two 2-digit Numbers - Within 100
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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.
Now, add the tens.
The sum of 38 and 35 is 73.
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.