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Subtract Two 2-digit Numbers - Within 100
To subtract two digit numbers, first align the numbers so that place values are lined up.
Subtract ones regroup if needed and then subtract tens.
For example: Let's find the difference of 45 and 16.
Align the numbers and subtract ones. Regroup if needed.
| 3 | 15 | |
| 4 | 5 | |
|
|
1 | 6 |
| 9 |
Now, subtract the tens.
| 3 | 15 | |
| 4 | 5 | |
|
|
1 | 6 |
| 2 | 9 |
The difference of 45 and 16 is 29.
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Help
The correct answer is
Remember :
The smallest number is the one that comes first while counting.
Solution :
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21,27,23
21 is the smallest number.