Solution - Long subtraction
28.4
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 5 | . | 6 | 1 | |
| - | 3 | 7 | . | 2 | 1 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
1-1=0
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 5 | . | 6 | 1 | |
| - | 3 | 7 | . | 2 | 1 |
| . | 0 |
Subtract the numbers in the tenths column from the top number:
6-2=4
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 5 | . | 6 | 1 | |
| - | 3 | 7 | . | 2 | 1 |
| . | 4 | 0 |
Because the upper digit (5) 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 (15).
| Place value | tens | ones | . | tenths | hundredths |
| 5 | 15 | ||||
| 6 | 5 | . | 6 | 1 | |
| - | 3 | 7 | . | 2 | 1 |
| . | 4 | 0 |
Subtract the numbers in the ones column from the top number:
15-7=8
| Place value | tens | ones | . | tenths | hundredths |
| 5 | 15 | ||||
| 6 | 5 | . | 6 | 1 | |
| - | 3 | 7 | . | 2 | 1 |
| 8 | . | 4 | 0 |
Subtract the numbers in the tens column from the top number:
5-3=2
| Place value | tens | ones | . | tenths | hundredths |
| 5 | 15 | ||||
| 6 | 5 | . | 6 | 1 | |
| - | 3 | 7 | . | 2 | 1 |
| 2 | 8 | . | 4 | 0 |
The solution is: 28.4
How did we do?
Please leave us feedback.Why learn this
Why learn this