Solution - Long subtraction
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 |
| 3 | 4 | 0 | 5 | 6 | 7 | |
| - | 6 | 8 | 4 | 1 | 5 | |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
7-5=2
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 3 | 4 | 0 | 5 | 6 | 7 | |
| - | 6 | 8 | 4 | 1 | 5 | |
| 2 |
Subtract the numbers in the tens column from the top number:
6-1=5
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 3 | 4 | 0 | 5 | 6 | 7 | |
| - | 6 | 8 | 4 | 1 | 5 | |
| 5 | 2 |
Subtract the numbers in the hundreds column from the top number:
5-4=1
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 3 | 4 | 0 | 5 | 6 | 7 | |
| - | 6 | 8 | 4 | 1 | 5 | |
| 1 | 5 | 2 |
Because the upper digit (0) in the thousands 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 (10).
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 3 | 10 | |||||
| 3 | 4 | 0 | 5 | 6 | 7 | |
| - | 6 | 8 | 4 | 1 | 5 | |
| 1 | 5 | 2 |
Subtract the numbers in the thousands column from the top number:
10-8=2
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 3 | 10 | |||||
| 3 | 4 | 0 | 5 | 6 | 7 | |
| - | 6 | 8 | 4 | 1 | 5 | |
| 2 | 1 | 5 | 2 |
Because the upper digit (3) in the ten thousands column is too small to get a positive difference, borrow 1 from the digit (3) in the next number place which becomes (2) and get (13).
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 2 | 13 | |||||
| 3 | 10 | |||||
| 3 | 4 | 0 | 5 | 6 | 7 | |
| - | 6 | 8 | 4 | 1 | 5 | |
| 2 | 1 | 5 | 2 |
Subtract the numbers in the ten thousands column from the top number:
13-6=7
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 2 | 13 | |||||
| 3 | 10 | |||||
| 3 | 4 | 0 | 5 | 6 | 7 | |
| - | 6 | 8 | 4 | 1 | 5 | |
| 7 | 2 | 1 | 5 | 2 |
Write 2 in the hundred thousands place.
| Place value | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 2 | 13 | |||||
| 3 | 10 | |||||
| 3 | 4 | 0 | 5 | 6 | 7 | |
| - | 6 | 8 | 4 | 1 | 5 | |
| 2 | 7 | 2 | 1 | 5 | 2 |
The solution is: 272,152
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