Soluzione - Long subtraction
677,6
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths |
| 6 | 7 | 9 | |||
| - | 1 | , | 4 | ||
| , |
Put zeros in the blank number places:
| Place value | hundreds | tens | ones | . | tenths |
| 6 | 7 | 9 | , | 0 | |
| - | 1 | , | 4 | ||
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the tenths 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 (10).
| Place value | hundreds | tens | ones | . | tenths |
| 8 | 10 | ||||
| 6 | 7 | 9 | , | 0 | |
| - | 1 | , | 4 | ||
| , |
Subtract the numbers in the tenths column from the top number:
10-0-4=6
| Place value | hundreds | tens | ones | . | tenths |
| 8 | 10 | ||||
| 6 | 7 | 9 | , | 0 | |
| - | 1 | , | 4 | ||
| , | 6 |
Subtract the numbers in the ones column from the top number:
8-1=7
| Place value | hundreds | tens | ones | . | tenths |
| 8 | 10 | ||||
| 6 | 7 | 9 | , | 0 | |
| - | 1 | , | 4 | ||
| 7 | , | 6 |
Write 7 in the tens place.
| Place value | hundreds | tens | ones | . | tenths |
| 8 | 10 | ||||
| 6 | 7 | 9 | , | 0 | |
| - | 1 | , | 4 | ||
| 7 | 7 | , | 6 |
Write 6 in the hundreds place.
| Place value | hundreds | tens | ones | . | tenths |
| 8 | 10 | ||||
| 6 | 7 | 9 | , | 0 | |
| - | 1 | , | 4 | ||
| 6 | 7 | 7 | , | 6 |
The solution is: 677,6
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