Solution - Long subtraction
31,328
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 |
| 5 | 4 | 2 | 0 | 1 | |
| - | 2 | 2 | 8 | 7 | 3 |
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 number to the left (20) which becomes (19) and get (11).
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 1 | 9 | 11 | |||
| 5 | 4 | 2 | 0 | 1 | |
| - | 2 | 2 | 8 | 7 | 3 |
Subtract the numbers in the ones column from the top number:
11-3=8
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 1 | 9 | 11 | |||
| 5 | 4 | 2 | 0 | 1 | |
| - | 2 | 2 | 8 | 7 | 3 |
| 8 |
Subtract the numbers in the tens column from the top number:
9-7=2
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 1 | 9 | 11 | |||
| 5 | 4 | 2 | 0 | 1 | |
| - | 2 | 2 | 8 | 7 | 3 |
| 2 | 8 |
Because the upper digit (1) in the hundreds 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 (11).
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 3 | 11 | ||||
| 1 | 9 | 11 | |||
| 5 | 4 | 2 | 0 | 1 | |
| - | 2 | 2 | 8 | 7 | 3 |
| 2 | 8 |
Subtract the numbers in the hundreds column from the top number:
11-8=3
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 3 | 11 | ||||
| 1 | 9 | 11 | |||
| 5 | 4 | 2 | 0 | 1 | |
| - | 2 | 2 | 8 | 7 | 3 |
| 3 | 2 | 8 |
Subtract the numbers in the thousands column from the top number:
3-2=1
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 3 | 11 | ||||
| 1 | 9 | 11 | |||
| 5 | 4 | 2 | 0 | 1 | |
| - | 2 | 2 | 8 | 7 | 3 |
| 1 | 3 | 2 | 8 |
Subtract the numbers in the ten thousands column from the top number:
5-2=3
| Place value | ten thousands | thousands | hundreds | tens | ones |
| 3 | 11 | ||||
| 1 | 9 | 11 | |||
| 5 | 4 | 2 | 0 | 1 | |
| - | 2 | 2 | 8 | 7 | 3 |
| 3 | 1 | 3 | 2 | 8 |
The solution is: 31,328
How did we do?
Please leave us feedback.Why learn this
Why learn this