Soluzione - Long subtraction
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
2. Subtract the numbers using long subtraction method
Because the upper digit (6) in the ones column is too small to get a positive difference, borrow 1 from the digit (5) in the next number place which becomes (4) and get (16).
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
Subtract the numbers in the ones column from the top number:
16-6-4=6
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
| 6 |
Subtract the numbers in the tens column from the top number:
4-1=3
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
| 3 | 6 |
Because the upper digit (2) 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 (12).
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 3 | 12 | ||||||
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
| 3 | 6 |
Subtract the numbers in the hundreds column from the top number:
12-4=8
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 3 | 12 | ||||||
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
| 8 | 3 | 6 |
Because the upper digit (3) in the thousands 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 (13).
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 13 | ||||||
| 3 | 12 | ||||||
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
| 8 | 3 | 6 |
Subtract the numbers in the thousands column from the top number:
13-6=7
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 13 | ||||||
| 3 | 12 | ||||||
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
| 7 | 8 | 3 | 6 |
Write 1 in the ten thousands place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 13 | ||||||
| 3 | 12 | ||||||
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
| 1 | 7 | 8 | 3 | 6 |
Write 0 in the hundred thousands place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 13 | ||||||
| 3 | 12 | ||||||
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
| 0 | 1 | 7 | 8 | 3 | 6 |
Write 1 in the millions place.
| Place value | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 13 | ||||||
| 3 | 12 | ||||||
| 4 | 16 | ||||||
| 1 | 0 | 2 | 4 | 2 | 5 | 6 | |
| 6 | 4 | 1 | 6 | ||||
| - | 4 | ||||||
| 1 | 0 | 1 | 7 | 8 | 3 | 6 |
The solution is: 1,017,836
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