Solution - Long subtraction
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 3 | 4 | 5 | . | 2 | 5 | |
| - | 8 | 7 | . | 6 | 5 | |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
5-5=0
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 3 | 4 | 5 | . | 2 | 5 | |
| - | 8 | 7 | . | 6 | 5 | |
| . | 0 |
Because the upper digit (2) in the tenths column is too small to get a positive difference, borrow 1 from the digit (5) in the next number place which becomes (4) and get (12).
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 12 | |||||
| 3 | 4 | 5 | . | 2 | 5 | |
| - | 8 | 7 | . | 6 | 5 | |
| . | 0 |
Subtract the numbers in the tenths column from the top number:
12-6=6
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 4 | 12 | |||||
| 3 | 4 | 5 | . | 2 | 5 | |
| - | 8 | 7 | . | 6 | 5 | |
| . | 6 | 0 |
Because the upper digit (4) in the ones 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 | hundreds | tens | ones | . | tenths | hundredths |
| 3 | 14 | |||||
| 4 | 12 | |||||
| 3 | 4 | 5 | . | 2 | 5 | |
| - | 8 | 7 | . | 6 | 5 | |
| . | 6 | 0 |
Subtract the numbers in the ones column from the top number:
14-7=7
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 3 | 14 | |||||
| 4 | 12 | |||||
| 3 | 4 | 5 | . | 2 | 5 | |
| - | 8 | 7 | . | 6 | 5 | |
| 7 | . | 6 | 0 |
Because the upper digit (3) in the tens column is too small to get a positive difference, borrow 1 from the digit (3) in the next number place which becomes (2) and get (13).
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 2 | 13 | |||||
| 3 | 14 | |||||
| 4 | 12 | |||||
| 3 | 4 | 5 | . | 2 | 5 | |
| - | 8 | 7 | . | 6 | 5 | |
| 7 | . | 6 | 0 |
Subtract the numbers in the tens column from the top number:
13-8=5
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 2 | 13 | |||||
| 3 | 14 | |||||
| 4 | 12 | |||||
| 3 | 4 | 5 | . | 2 | 5 | |
| - | 8 | 7 | . | 6 | 5 | |
| 5 | 7 | . | 6 | 0 |
Write 2 in the hundreds place.
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 2 | 13 | |||||
| 3 | 14 | |||||
| 4 | 12 | |||||
| 3 | 4 | 5 | . | 2 | 5 | |
| - | 8 | 7 | . | 6 | 5 | |
| 2 | 5 | 7 | . | 6 | 0 |
The solution is: 257.6
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