Solution - Long subtraction
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
2. Subtract the numbers using long subtraction method
Because the upper digit (8) in the ones column is too small to get a positive difference, borrow 1 from the digit (9) in the next number place which becomes (8) and get (18).
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
Subtract the numbers in the ones column from the top number:
18-5-6=7
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
| 7 |
Because the upper digit (8) in the tens column is too small to get a positive difference, borrow 1 from the digit (9) in the next number place which becomes (8) and get (18).
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
| 7 |
Subtract the numbers in the tens column from the top number:
18-7-5=6
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
| 6 | 7 |
Because the upper digit (8) in the hundreds 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 (18).
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
| 6 | 7 |
Subtract the numbers in the hundreds column from the top number:
18-8-7=3
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
| 3 | 6 | 7 |
Write 1 in the thousands place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
| 1 | 3 | 6 | 7 |
Write 8 in the ten thousands place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
| 8 | 1 | 3 | 6 | 7 |
Write 9 in the hundred thousands place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
| 9 | 8 | 1 | 3 | 6 | 7 |
Write 8 in the millions place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 18 | ||||||
| 8 | 9 | 8 | 2 | 9 | 9 | 8 | |
| 8 | 7 | 5 | |||||
| - | 7 | 5 | 6 | ||||
| 8 | 9 | 8 | 1 | 3 | 6 | 7 |
The solution is: 8,981,367
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