Soluzione - Long subtraction
83,446
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 5 | , | 8 | |||
| - | 2 | , | 3 | 5 | 4 | |
| , |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 5 | , | 8 | 0 | 0 | |
| - | 2 | , | 3 | 5 | 4 | |
| , |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the thousandths column is too small to get a positive difference, borrow 1 from the number to the left (80) which becomes (79) and get (10).
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | ||||
| 8 | 5 | , | 8 | 0 | 0 | |
| - | 2 | , | 3 | 5 | 4 | |
| , |
Subtract the numbers in the thousandths column from the top number:
10-0-4=6
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | ||||
| 8 | 5 | , | 8 | 0 | 0 | |
| - | 2 | , | 3 | 5 | 4 | |
| , | 6 |
Subtract the numbers in the hundredths column from the top number:
9-5=4
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | ||||
| 8 | 5 | , | 8 | 0 | 0 | |
| - | 2 | , | 3 | 5 | 4 | |
| , | 4 | 6 |
Subtract the numbers in the tenths column from the top number:
7-3=4
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | ||||
| 8 | 5 | , | 8 | 0 | 0 | |
| - | 2 | , | 3 | 5 | 4 | |
| , | 4 | 4 | 6 |
Subtract the numbers in the ones column from the top number:
5-2=3
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | ||||
| 8 | 5 | , | 8 | 0 | 0 | |
| - | 2 | , | 3 | 5 | 4 | |
| 3 | , | 4 | 4 | 6 |
Write 8 in the tens place.
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | ||||
| 8 | 5 | , | 8 | 0 | 0 | |
| - | 2 | , | 3 | 5 | 4 | |
| 8 | 3 | , | 4 | 4 | 6 |
The solution is: 83,446
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