Soluzione - Long subtraction
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 8 | , | 5 | ||||
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| , |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the ten thousandths column is too small to get a positive difference, borrow 1 from the number to the left (500) which becomes (499) and get (10).
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 4 | 9 | 9 | 10 | ||||
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| , |
Subtract the numbers in the ten thousandths column from the top number:
10-0-6-3=1
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 4 | 9 | 9 | 10 | ||||
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| , | 1 |
Subtract the numbers in the thousandths column from the top number:
9-2-3=4
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 4 | 9 | 9 | 10 | ||||
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| , | 4 | 1 |
Because the upper digit (9) in the hundredths column is too small to get a positive difference, borrow 1 from the digit (4) in the next number place which becomes (3) and get (19).
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 3 | 19 | ||||||
| 4 | 9 | 9 | 10 | ||||
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| , | 4 | 1 |
Subtract the numbers in the hundredths column from the top number:
19-5-6=8
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 3 | 19 | ||||||
| 4 | 9 | 9 | 10 | ||||
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| , | 8 | 4 | 1 |
Because the upper digit (3) in the tenths column is too small to get a positive difference, borrow 1 from the digit (8) in the next number place which becomes (7) and get (13).
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 7 | 13 | ||||||
| 3 | 19 | ||||||
| 4 | 9 | 9 | 10 | ||||
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| , | 8 | 4 | 1 |
Subtract the numbers in the tenths column from the top number:
13-4-4=5
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 7 | 13 | ||||||
| 3 | 19 | ||||||
| 4 | 9 | 9 | 10 | ||||
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| , | 5 | 8 | 4 | 1 |
Subtract the numbers in the ones column from the top number:
7-1-3=3
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 7 | 13 | ||||||
| 3 | 19 | ||||||
| 4 | 9 | 9 | 10 | ||||
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| 3 | , | 5 | 8 | 4 | 1 |
Subtract the numbers in the tens column from the top number:
6-2-1=3
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 7 | 13 | ||||||
| 3 | 19 | ||||||
| 4 | 9 | 9 | 10 | ||||
| 6 | 8 | , | 5 | 0 | 0 | 0 | |
| 2 | 1 | , | 4 | 5 | 2 | 6 | |
| - | 1 | 3 | , | 4 | 6 | 3 | 3 |
| 3 | 3 | , | 5 | 8 | 4 | 1 |
The solution is: 33,5841
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