คำตอบ - Long subtraction
5
คำอธิบายทีละขั้นตอน
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths |
| 8 | . | 6 | |
| 1 | |||
| - | 2 | . | 6 |
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths |
| 8 | . | 6 | |
| 1 | . | 0 | |
| - | 2 | . | 6 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the tenths column from the top number:
6-0-6=0
| Place value | ones | . | tenths |
| 8 | . | 6 | |
| 1 | . | 0 | |
| - | 2 | . | 6 |
| . | 0 |
Subtract the numbers in the ones column from the top number:
8-1-2=5
| Place value | ones | . | tenths |
| 8 | . | 6 | |
| 1 | . | 0 | |
| - | 2 | . | 6 |
| 5 | . | 0 |
The solution is: 5
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