Soluzione - Long subtraction
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 5 | 0 | 0 | 0 | , | 6 | ||
| - | 4 | 3 | 2 | , | 8 | 5 | |
| , |
Put zeros in the blank number places:
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 5 | 0 | 0 | 0 | , | 6 | 0 | |
| - | 4 | 3 | 2 | , | 8 | 5 | |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the hundredths 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 (10).
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 5 | 10 | ||||||
| 5 | 0 | 0 | 0 | , | 6 | 0 | |
| - | 4 | 3 | 2 | , | 8 | 5 | |
| , |
Subtract the numbers in the hundredths column from the top number:
10-0-5=5
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 5 | 10 | ||||||
| 5 | 0 | 0 | 0 | , | 6 | 0 | |
| - | 4 | 3 | 2 | , | 8 | 5 | |
| , | 5 |
Because the upper digit (5) in the tenths 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 (15).
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 9 | 9 | 15 | ||||
| 5 | 10 | ||||||
| 5 | 0 | 0 | 0 | , | 6 | 0 | |
| - | 4 | 3 | 2 | , | 8 | 5 | |
| , | 5 |
Subtract the numbers in the tenths column from the top number:
15-8=7
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 9 | 9 | 15 | ||||
| 5 | 10 | ||||||
| 5 | 0 | 0 | 0 | , | 6 | 0 | |
| - | 4 | 3 | 2 | , | 8 | 5 | |
| , | 7 | 5 |
Subtract the numbers in the ones column from the top number:
9-2=7
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 9 | 9 | 15 | ||||
| 5 | 10 | ||||||
| 5 | 0 | 0 | 0 | , | 6 | 0 | |
| - | 4 | 3 | 2 | , | 8 | 5 | |
| 7 | , | 7 | 5 |
Subtract the numbers in the tens column from the top number:
9-3=6
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 9 | 9 | 15 | ||||
| 5 | 10 | ||||||
| 5 | 0 | 0 | 0 | , | 6 | 0 | |
| - | 4 | 3 | 2 | , | 8 | 5 | |
| 6 | 7 | , | 7 | 5 |
Subtract the numbers in the hundreds column from the top number:
9-4=5
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 9 | 9 | 15 | ||||
| 5 | 10 | ||||||
| 5 | 0 | 0 | 0 | , | 6 | 0 | |
| - | 4 | 3 | 2 | , | 8 | 5 | |
| 5 | 6 | 7 | , | 7 | 5 |
Write 4 in the thousands place.
| Place value | thousands | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 9 | 9 | 15 | ||||
| 5 | 10 | ||||||
| 5 | 0 | 0 | 0 | , | 6 | 0 | |
| - | 4 | 3 | 2 | , | 8 | 5 | |
| 4 | 5 | 6 | 7 | , | 7 | 5 |
The solution is: 4567,75
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