Soluzione - Long subtraction
7.996
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
Place value | thousands | hundreds | tens | ones |
8 | 0 | 0 | 0 | |
- | 4 | |||
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the ones column is too small to get a positive difference, borrow 1 from the number to the left (800) which becomes (799) and get (10).
Place value | thousands | hundreds | tens | ones |
7 | 9 | 9 | 10 | |
8 | 0 | 0 | 0 | |
- | 4 | |||
Subtract the numbers in the ones column from the top number:
10-4=6
Place value | thousands | hundreds | tens | ones |
7 | 9 | 9 | 10 | |
8 | 0 | 0 | 0 | |
- | 4 | |||
6 |
Write 9 in the tens place.
Place value | thousands | hundreds | tens | ones |
7 | 9 | 9 | 10 | |
8 | 0 | 0 | 0 | |
- | 4 | |||
9 | 6 |
Write 9 in the hundreds place.
Place value | thousands | hundreds | tens | ones |
7 | 9 | 9 | 10 | |
8 | 0 | 0 | 0 | |
- | 4 | |||
9 | 9 | 6 |
Write 7 in the thousands place.
Place value | thousands | hundreds | tens | ones |
7 | 9 | 9 | 10 | |
8 | 0 | 0 | 0 | |
- | 4 | |||
7 | 9 | 9 | 6 |
The solution is: 7,996
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