Soluzione - Long subtraction
9,02
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 2 | 2 | , | 0 | 2 | |
| - | 1 | 3 | |||
| , |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths |
| 2 | 2 | , | 0 | 2 | |
| - | 1 | 3 | , | 0 | 0 |
| , |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
2-0=2
| Place value | tens | ones | . | tenths | hundredths |
| 2 | 2 | , | 0 | 2 | |
| - | 1 | 3 | , | 0 | 0 |
| , | 2 |
Subtract the numbers in the tenths column from the top number:
0-0=0
| Place value | tens | ones | . | tenths | hundredths |
| 2 | 2 | , | 0 | 2 | |
| - | 1 | 3 | , | 0 | 0 |
| , | 0 | 2 |
Because the upper digit (2) in the ones column is too small to get a positive difference, borrow 1 from the digit (2) in the next number place which becomes (1) and get (12).
| Place value | tens | ones | . | tenths | hundredths |
| 1 | 12 | ||||
| 2 | 2 | , | 0 | 2 | |
| - | 1 | 3 | , | 0 | 0 |
| , | 0 | 2 |
Subtract the numbers in the ones column from the top number:
12-3=9
| Place value | tens | ones | . | tenths | hundredths |
| 1 | 12 | ||||
| 2 | 2 | , | 0 | 2 | |
| - | 1 | 3 | , | 0 | 0 |
| 9 | , | 0 | 2 |
Subtract the numbers in the tens column from the top number:
1-1=0
| Place value | tens | ones | . | tenths | hundredths |
| 1 | 12 | ||||
| 2 | 2 | , | 0 | 2 | |
| - | 1 | 3 | , | 0 | 0 |
| 0 | 9 | , | 0 | 2 |
The solution is: 9,02
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