Solution - Long subtraction
27.64
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 5 | 7 | . | 1 | 4 | |
| - | 2 | 9 | . | 5 | |
| . |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths |
| 5 | 7 | . | 1 | 4 | |
| - | 2 | 9 | . | 5 | 0 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
4-0=4
| Place value | tens | ones | . | tenths | hundredths |
| 5 | 7 | . | 1 | 4 | |
| - | 2 | 9 | . | 5 | 0 |
| . | 4 |
Because the upper digit (1) in the tenths column is too small to get a positive difference, borrow 1 from the digit (7) in the next number place which becomes (6) and get (11).
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 5 | 7 | . | 1 | 4 | |
| - | 2 | 9 | . | 5 | 0 |
| . | 4 |
Subtract the numbers in the tenths column from the top number:
11-5=6
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 11 | ||||
| 5 | 7 | . | 1 | 4 | |
| - | 2 | 9 | . | 5 | 0 |
| . | 6 | 4 |
Because the upper digit (6) in the ones column is too small to get a positive difference, borrow 1 from the digit (5) in the next number place which becomes (4) and get (16).
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 16 | ||||
| 6 | 11 | ||||
| 5 | 7 | . | 1 | 4 | |
| - | 2 | 9 | . | 5 | 0 |
| . | 6 | 4 |
Subtract the numbers in the ones column from the top number:
16-9=7
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 16 | ||||
| 6 | 11 | ||||
| 5 | 7 | . | 1 | 4 | |
| - | 2 | 9 | . | 5 | 0 |
| 7 | . | 6 | 4 |
Subtract the numbers in the tens column from the top number:
4-2=2
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 16 | ||||
| 6 | 11 | ||||
| 5 | 7 | . | 1 | 4 | |
| - | 2 | 9 | . | 5 | 0 |
| 2 | 7 | . | 6 | 4 |
The solution is: 27.64
How did we do?
Please leave us feedback.Why learn this
Why learn this