Soluzione - Long subtraction
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
0-0=0
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 0 |
Subtract the numbers in the tens column from the top number:
0-0=0
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 0 | 0 |
Because the upper digit (0) in the hundreds column is too small to get a positive difference, borrow 1 from the number to the left (5.000) which becomes (4.999) and get (10).
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 0 | 0 |
Subtract the numbers in the hundreds column from the top number:
10-5=5
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 5 | 0 | 0 |
Subtract the numbers in the thousands column from the top number:
9-2=7
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 7 | 5 | 0 | 0 |
Subtract the numbers in the ten thousands column from the top number:
9-6=3
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 3 | 7 | 5 | 0 | 0 |
Subtract the numbers in the hundred thousands column from the top number:
9-0=9
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 9 | 3 | 7 | 5 | 0 | 0 |
Because the upper digit (4) in the millions column is too small to get a positive difference, borrow 1 from the digit (6) in the next number place which becomes (5) and get (14).
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 5 | 14 | |||||||||
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 9 | 3 | 7 | 5 | 0 | 0 |
Subtract the numbers in the millions column from the top number:
14-6=8
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 5 | 14 | |||||||||
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 8 | 9 | 3 | 7 | 5 | 0 | 0 |
Subtract the numbers in the ten millions column from the top number:
5-5=0
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 5 | 14 | |||||||||
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 0 | 8 | 9 | 3 | 7 | 5 | 0 | 0 |
Subtract the numbers in the hundred millions column from the top number:
2-1=1
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 5 | 14 | |||||||||
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 1 | 0 | 8 | 9 | 3 | 7 | 5 | 0 | 0 |
Subtract the numbers in the billions column from the top number:
1-1=0
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 5 | 14 | |||||||||
| 4 | 9 | 9 | 9 | 10 | ||||||
| 1 | 2 | 6 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | |
| - | 1 | 1 | 5 | 6 | 0 | 6 | 2 | 5 | 0 | 0 |
| 0 | 1 | 0 | 8 | 9 | 3 | 7 | 5 | 0 | 0 |
The solution is: 108,937,500
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