Solution - Long subtraction
152.6
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths |
| 8 | 2 | 4 | . | 5 | |
| - | 6 | 7 | 1 | . | 9 |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (5) in the tenths 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 (15).
| Place value | hundreds | tens | ones | . | tenths |
| 3 | 15 | ||||
| 8 | 2 | 4 | . | 5 | |
| - | 6 | 7 | 1 | . | 9 |
| . |
Subtract the numbers in the tenths column from the top number:
15-9=6
| Place value | hundreds | tens | ones | . | tenths |
| 3 | 15 | ||||
| 8 | 2 | 4 | . | 5 | |
| - | 6 | 7 | 1 | . | 9 |
| . | 6 |
Subtract the numbers in the ones column from the top number:
3-1=2
| Place value | hundreds | tens | ones | . | tenths |
| 3 | 15 | ||||
| 8 | 2 | 4 | . | 5 | |
| - | 6 | 7 | 1 | . | 9 |
| 2 | . | 6 |
Because the upper digit (2) in the tens column is too small to get a positive difference, borrow 1 from the digit (8) in the next number place which becomes (7) and get (12).
| Place value | hundreds | tens | ones | . | tenths |
| 7 | 12 | ||||
| 3 | 15 | ||||
| 8 | 2 | 4 | . | 5 | |
| - | 6 | 7 | 1 | . | 9 |
| 2 | . | 6 |
Subtract the numbers in the tens column from the top number:
12-7=5
| Place value | hundreds | tens | ones | . | tenths |
| 7 | 12 | ||||
| 3 | 15 | ||||
| 8 | 2 | 4 | . | 5 | |
| - | 6 | 7 | 1 | . | 9 |
| 5 | 2 | . | 6 |
Subtract the numbers in the hundreds column from the top number:
7-6=1
| Place value | hundreds | tens | ones | . | tenths |
| 7 | 12 | ||||
| 3 | 15 | ||||
| 8 | 2 | 4 | . | 5 | |
| - | 6 | 7 | 1 | . | 9 |
| 1 | 5 | 2 | . | 6 |
The solution is: 152.6
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