Soluzione - Long subtraction
247,84
Spiegazione passo passo
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 2 | 5 | 0 | , | 2 | 6 | |
| - | 2 | , | 4 | 2 | ||
| , |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
6-2=4
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 2 | 5 | 0 | , | 2 | 6 | |
| - | 2 | , | 4 | 2 | ||
| , | 4 |
Because the upper digit (2) in the tenths column is too small to get a positive difference, borrow 1 from the number to the left (50) which becomes (49) and get (12).
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 12 | |||||
| 2 | 5 | 0 | , | 2 | 6 | |
| - | 2 | , | 4 | 2 | ||
| , | 4 |
Subtract the numbers in the tenths column from the top number:
12-4=8
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 12 | |||||
| 2 | 5 | 0 | , | 2 | 6 | |
| - | 2 | , | 4 | 2 | ||
| , | 8 | 4 |
Subtract the numbers in the ones column from the top number:
9-2=7
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 12 | |||||
| 2 | 5 | 0 | , | 2 | 6 | |
| - | 2 | , | 4 | 2 | ||
| 7 | , | 8 | 4 |
Write 4 in the tens place.
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 12 | |||||
| 2 | 5 | 0 | , | 2 | 6 | |
| - | 2 | , | 4 | 2 | ||
| 4 | 7 | , | 8 | 4 |
Write 2 in the hundreds place.
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 12 | |||||
| 2 | 5 | 0 | , | 2 | 6 | |
| - | 2 | , | 4 | 2 | ||
| 2 | 4 | 7 | , | 8 | 4 |
The solution is: 247,84
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