Soluzione - Long subtraction
3.327.211.581
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 |
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
2. Subtract the numbers using long subtraction method
Because the upper digit (3) 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 (13).
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
Subtract the numbers in the ones column from the top number:
13-3-9=1
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 1 |
Write 8 in the tens place.
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 8 | 1 |
Write 5 in the hundreds place.
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 5 | 8 | 1 |
Write 1 in the thousands place.
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 1 | 5 | 8 | 1 |
Write 1 in the ten thousands place.
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 1 | 1 | 5 | 8 | 1 |
Write 2 in the hundred thousands place.
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 2 | 1 | 1 | 5 | 8 | 1 |
Write 7 in the millions place.
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 7 | 2 | 1 | 1 | 5 | 8 | 1 |
Write 2 in the ten millions place.
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 2 | 7 | 2 | 1 | 1 | 5 | 8 | 1 |
Write 3 in the hundred millions place.
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 3 | 2 | 7 | 2 | 1 | 1 | 5 | 8 | 1 |
Write 3 in the billions place.
| Place value | billions | hundred millions | ten millions | millions | hundred thousands | ten thousands | thousands | hundreds | tens | ones |
| 8 | 13 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 9 | 3 | |
| 3 | ||||||||||
| - | 9 | |||||||||
| 3 | 3 | 2 | 7 | 2 | 1 | 1 | 5 | 8 | 1 |
The solution is: 3,327,211,581
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