คำตอบ - Long subtraction
8.4
คำอธิบายทีละขั้นตอน
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths |
| 9 | . | 8 | |
| - | 1 | . | 4 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the tenths column from the top number:
8-4=4
| Place value | ones | . | tenths |
| 9 | . | 8 | |
| - | 1 | . | 4 |
| . | 4 |
Subtract the numbers in the ones column from the top number:
9-1=8
| Place value | ones | . | tenths |
| 9 | . | 8 | |
| - | 1 | . | 4 |
| 8 | . | 4 |
The solution is: 8.4
ทำไมต้องเรียนสิ่งนี้
Learn more with Tiger
Why learn this