Solution - Long subtraction
29
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones |
| 4 | 2 | |
| - | 1 | 3 |
2. Subtract the numbers using long subtraction method
Because the upper digit (2) in the ones column is too small to get a positive difference, borrow 1 from the digit (4) in the next number place which becomes (3) and get (12).
| Place value | tens | ones |
| 3 | 12 | |
| 4 | 2 | |
| - | 1 | 3 |
Subtract the numbers in the ones column from the top number:
12-3=9
| Place value | tens | ones |
| 3 | 12 | |
| 4 | 2 | |
| - | 1 | 3 |
| 9 |
Subtract the numbers in the tens column from the top number:
3-1=2
| Place value | tens | ones |
| 3 | 12 | |
| 4 | 2 | |
| - | 1 | 3 |
| 2 | 9 |
The solution is: 29
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