Solution - Long subtraction
49.5
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths |
| 6 | 1 | . | 5 | |
| - | 1 | 2 | ||
| . |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths |
| 6 | 1 | . | 5 | |
| - | 1 | 2 | . | 0 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the tenths column from the top number:
5-0=5
| Place value | tens | ones | . | tenths |
| 6 | 1 | . | 5 | |
| - | 1 | 2 | . | 0 |
| . | 5 |
Because the upper digit (1) in the ones 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 (11).
| Place value | tens | ones | . | tenths |
| 5 | 11 | |||
| 6 | 1 | . | 5 | |
| - | 1 | 2 | . | 0 |
| . | 5 |
Subtract the numbers in the ones column from the top number:
11-2=9
| Place value | tens | ones | . | tenths |
| 5 | 11 | |||
| 6 | 1 | . | 5 | |
| - | 1 | 2 | . | 0 |
| 9 | . | 5 |
Subtract the numbers in the tens column from the top number:
5-1=4
| Place value | tens | ones | . | tenths |
| 5 | 11 | |||
| 6 | 1 | . | 5 | |
| - | 1 | 2 | . | 0 |
| 4 | 9 | . | 5 |
The solution is: 49.5
How did we do?
Please leave us feedback.Why learn this
Why learn this