Solution - Long subtraction
17.76
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 5 | . | 5 | 6 | |
| - | 2 | 7 | . | 8 | |
| . |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 5 | . | 5 | 6 | |
| - | 2 | 7 | . | 8 | 0 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
6-0=6
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 5 | . | 5 | 6 | |
| - | 2 | 7 | . | 8 | 0 |
| . | 6 |
Because the upper digit (5) in the tenths 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 (15).
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 15 | ||||
| 4 | 5 | . | 5 | 6 | |
| - | 2 | 7 | . | 8 | 0 |
| . | 6 |
Subtract the numbers in the tenths column from the top number:
15-8=7
| Place value | tens | ones | . | tenths | hundredths |
| 4 | 15 | ||||
| 4 | 5 | . | 5 | 6 | |
| - | 2 | 7 | . | 8 | 0 |
| . | 7 | 6 |
Because the upper digit (4) in the ones column is too small to get a positive difference, borrow 1 from the digit (4) in the next number place which becomes (3) and get (14).
| Place value | tens | ones | . | tenths | hundredths |
| 3 | 14 | ||||
| 4 | 15 | ||||
| 4 | 5 | . | 5 | 6 | |
| - | 2 | 7 | . | 8 | 0 |
| . | 7 | 6 |
Subtract the numbers in the ones column from the top number:
14-7=7
| Place value | tens | ones | . | tenths | hundredths |
| 3 | 14 | ||||
| 4 | 15 | ||||
| 4 | 5 | . | 5 | 6 | |
| - | 2 | 7 | . | 8 | 0 |
| 7 | . | 7 | 6 |
Subtract the numbers in the tens column from the top number:
3-2=1
| Place value | tens | ones | . | tenths | hundredths |
| 3 | 14 | ||||
| 4 | 15 | ||||
| 4 | 5 | . | 5 | 6 | |
| - | 2 | 7 | . | 8 | 0 |
| 1 | 7 | . | 7 | 6 |
The solution is: 17.76
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