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 |
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (4) in the ten thousandths 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 (14).
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| , |
Subtract the numbers in the ten thousandths column from the top number:
14-6=8
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| , | 8 |
Because the upper digit (3) in the thousandths 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 (13).
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 3 | 13 | ||||||
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| , | 8 |
Subtract the numbers in the thousandths column from the top number:
13-5=8
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 3 | 13 | ||||||
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| , | 8 | 8 |
Because the upper digit (3) in the hundredths 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 | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 8 | 13 | ||||||
| 3 | 13 | ||||||
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| , | 8 | 8 |
Subtract the numbers in the hundredths column from the top number:
13-5=8
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 8 | 13 | ||||||
| 3 | 13 | ||||||
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| , | 8 | 8 | 8 |
Subtract the numbers in the tenths column from the top number:
8-3=5
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 8 | 13 | ||||||
| 3 | 13 | ||||||
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| , | 5 | 8 | 8 | 8 |
Because the upper digit (0) in the ones column is too small to get a positive difference, borrow 1 from the digit (7) in the next number place which becomes (6) and get (10).
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 10 | ||||||
| 8 | 13 | ||||||
| 3 | 13 | ||||||
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| , | 5 | 8 | 8 | 8 |
Subtract the numbers in the ones column from the top number:
10-1=9
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 10 | ||||||
| 8 | 13 | ||||||
| 3 | 13 | ||||||
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| 9 | , | 5 | 8 | 8 | 8 |
Write 6 in the tens place.
| Place value | tens | ones | . | tenths | hundredths | thousandths | ten thousandths |
| 6 | 10 | ||||||
| 8 | 13 | ||||||
| 3 | 13 | ||||||
| 3 | 14 | ||||||
| 7 | 0 | , | 9 | 4 | 4 | 4 | |
| - | 1 | , | 3 | 5 | 5 | 6 | |
| 6 | 9 | , | 5 | 8 | 8 | 8 |
The solution is: 69,5888
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