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Solution - Long subtraction
45,049
Other Ways to Solve:
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 4 | 5 | 1 | 2 | 1 | |
| - | 7 | 2 | |||
2. Subtract the numbers using long subtraction method
Because the upper digit (1) in the ones column is too small to get a positive difference, borrow 1 from the digit (2) in the next number place which becomes (1) and get (11).
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 1 | 11 | ||||
| 4 | 5 | 1 | 2 | 1 | |
| - | 7 | 2 | |||
Subtract the numbers in the ones column from the top number:
11-2=9
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 1 | 11 | ||||
| 4 | 5 | 1 | 2 | 1 | |
| - | 7 | 2 | |||
| 9 |
Because the upper digit (1) in the tens column is too small to get a positive difference, borrow 1 from the digit (1) in the next number place which becomes (0) and get (11).
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 0 | 11 | ||||
| 1 | 11 | ||||
| 4 | 5 | 1 | 2 | 1 | |
| - | 7 | 2 | |||
| 9 |
Subtract the numbers in the tens column from the top number:
11-7=4
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 0 | 11 | ||||
| 1 | 11 | ||||
| 4 | 5 | 1 | 2 | 1 | |
| - | 7 | 2 | |||
| 4 | 9 |
Write 0 in the hundreds place.
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 0 | 11 | ||||
| 1 | 11 | ||||
| 4 | 5 | 1 | 2 | 1 | |
| - | 7 | 2 | |||
| 0 | 4 | 9 |
Write 5 in the thousands place.
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 0 | 11 | ||||
| 1 | 11 | ||||
| 4 | 5 | 1 | 2 | 1 | |
| - | 7 | 2 | |||
| 5 | 0 | 4 | 9 |
Write 4 in the ten thousands place.
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 0 | 11 | ||||
| 1 | 11 | ||||
| 4 | 5 | 1 | 2 | 1 | |
| - | 7 | 2 | |||
| 4 | 5 | 0 | 4 | 9 |
The solution is: 45,049
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