Solution - Long subtraction
4,000
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 7 | 1 | 0 | 0 | 0 | |
| - | 1 | 6 | 7 | 0 | 0 | 0 |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
0-0=0
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 7 | 1 | 0 | 0 | 0 | |
| - | 1 | 6 | 7 | 0 | 0 | 0 |
| 0 |
Subtract the numbers in the tens column from the top number:
0-0=0
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 7 | 1 | 0 | 0 | 0 | |
| - | 1 | 6 | 7 | 0 | 0 | 0 |
| 0 | 0 |
Subtract the numbers in the hundreds column from the top number:
0-0=0
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 7 | 1 | 0 | 0 | 0 | |
| - | 1 | 6 | 7 | 0 | 0 | 0 |
| 0 | 0 | 0 |
Because the upper digit (1) in the thousands column is too small to get a positive difference, borrow 1 from the digit (7) in the next number place which becomes (6) and get (11).
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 6 | 11 | |||||
| 1 | 7 | 1 | 0 | 0 | 0 | |
| - | 1 | 6 | 7 | 0 | 0 | 0 |
| 0 | 0 | 0 |
Subtract the numbers in the thousands column from the top number:
11-7=4
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 6 | 11 | |||||
| 1 | 7 | 1 | 0 | 0 | 0 | |
| - | 1 | 6 | 7 | 0 | 0 | 0 |
| 4 | 0 | 0 | 0 |
Subtract the numbers in the ten thousands column from the top number:
6-6=0
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 6 | 11 | |||||
| 1 | 7 | 1 | 0 | 0 | 0 | |
| - | 1 | 6 | 7 | 0 | 0 | 0 |
| 0 | 4 | 0 | 0 | 0 |
Subtract the numbers in the hundred thousands column from the top number:
1-1=0
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 6 | 11 | |||||
| 1 | 7 | 1 | 0 | 0 | 0 | |
| - | 1 | 6 | 7 | 0 | 0 | 0 |
| 0 | 0 | 4 | 0 | 0 | 0 |
The solution is: 4,000
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