Soluzione - Long subtraction
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | |||
| , |
Put zeros in the blank number places:
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| , |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the millionths column from the top number:
7-0=7
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| , | 7 |
Subtract the numbers in the hundred thousandths column from the top number:
6-0=6
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| , | 6 | 7 |
Subtract the numbers in the ten thousandths column from the top number:
1-0=1
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| , | 1 | 6 | 7 |
Subtract the numbers in the thousandths column from the top number:
8-7=1
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| , | 1 | 1 | 6 | 7 |
Subtract the numbers in the hundredths column from the top number:
7-3=4
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| , | 4 | 1 | 1 | 6 | 7 |
Subtract the numbers in the tenths column from the top number:
1-1=0
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| , | 0 | 4 | 1 | 1 | 6 | 7 |
Subtract the numbers in the ones column from the top number:
2-2=0
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| 0 | , | 0 | 4 | 1 | 1 | 6 | 7 |
Because the upper digit (3) in the tens 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 (13).
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 6 | 13 | |||||||||
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| 0 | , | 0 | 4 | 1 | 1 | 6 | 7 |
Subtract the numbers in the tens column from the top number:
13-4=9
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 6 | 13 | |||||||||
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| 9 | 0 | , | 0 | 4 | 1 | 1 | 6 | 7 |
Subtract the numbers in the hundreds column from the top number:
6-5=1
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths | ten thousandths | hundred thousandths | millionths |
| 6 | 13 | |||||||||
| 7 | 3 | 2 | , | 1 | 7 | 8 | 1 | 6 | 7 | |
| - | 5 | 4 | 2 | , | 1 | 3 | 7 | 0 | 0 | 0 |
| 1 | 9 | 0 | , | 0 | 4 | 1 | 1 | 6 | 7 |
The solution is: 190,041167
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