คำตอบ - Long subtraction
15.6
คำอธิบายทีละขั้นตอน
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths |
| 1 | 6 | . | 2 | |
| - | 0 | . | 6 | |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (2) in the tenths column is too small to get a positive difference, borrow 1 from the digit (6) in the next number place which becomes (5) and get (12).
| Place value | tens | ones | . | tenths |
| 5 | 12 | |||
| 1 | 6 | . | 2 | |
| - | 0 | . | 6 | |
| . |
Subtract the numbers in the tenths column from the top number:
12-6=6
| Place value | tens | ones | . | tenths |
| 5 | 12 | |||
| 1 | 6 | . | 2 | |
| - | 0 | . | 6 | |
| . | 6 |
Subtract the numbers in the ones column from the top number:
5-0=5
| Place value | tens | ones | . | tenths |
| 5 | 12 | |||
| 1 | 6 | . | 2 | |
| - | 0 | . | 6 | |
| 5 | . | 6 |
Write 1 in the tens place.
| Place value | tens | ones | . | tenths |
| 5 | 12 | |||
| 1 | 6 | . | 2 | |
| - | 0 | . | 6 | |
| 1 | 5 | . | 6 |
The solution is: 15.6
ทำไมต้องเรียนสิ่งนี้
Learn more with Tiger
Why learn this