Solution - Long subtraction
1.8
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths |
| 6 | |||
| 2 | . | 8 | |
| - | 1 | . | 4 |
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths |
| 6 | . | 0 | |
| 2 | . | 8 | |
| - | 1 | . | 4 |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the tenths column is too small to get a positive difference, borrow 2 from the digit (6) in the next number place which becomes (4) and get (20).
| Place value | ones | . | tenths |
| 4 | 20 | ||
| 6 | . | 0 | |
| 2 | . | 8 | |
| - | 1 | . | 4 |
| . |
Subtract the numbers in the tenths column from the top number:
20-0-8-4=8
| Place value | ones | . | tenths |
| 4 | 20 | ||
| 6 | . | 0 | |
| 2 | . | 8 | |
| - | 1 | . | 4 |
| . | 8 |
Subtract the numbers in the ones column from the top number:
4-2-1=1
| Place value | ones | . | tenths |
| 4 | 20 | ||
| 6 | . | 0 | |
| 2 | . | 8 | |
| - | 1 | . | 4 |
| 1 | . | 8 |
The solution is: 1.8
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