Solution - Long subtraction
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 2 | 7 | 3 | |||||
| - | 4 | 5 | . | 5 | 1 | 6 | |
| . |
Put zeros in the blank number places:
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 2 | 7 | 3 | . | 0 | 0 | 0 | |
| - | 4 | 5 | . | 5 | 1 | 6 | |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the thousandths column is too small to get a positive difference, borrow 1 from the number to the left (3.00) which becomes (2.99) and get (10).
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 9 | 10 | ||||
| 2 | 7 | 3 | . | 0 | 0 | 0 | |
| - | 4 | 5 | . | 5 | 1 | 6 | |
| . |
Subtract the numbers in the thousandths column from the top number:
10-0-6=4
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 9 | 10 | ||||
| 2 | 7 | 3 | . | 0 | 0 | 0 | |
| - | 4 | 5 | . | 5 | 1 | 6 | |
| . | 4 |
Subtract the numbers in the hundredths column from the top number:
9-1=8
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 9 | 10 | ||||
| 2 | 7 | 3 | . | 0 | 0 | 0 | |
| - | 4 | 5 | . | 5 | 1 | 6 | |
| . | 8 | 4 |
Subtract the numbers in the tenths column from the top number:
9-5=4
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 2 | 9 | 9 | 10 | ||||
| 2 | 7 | 3 | . | 0 | 0 | 0 | |
| - | 4 | 5 | . | 5 | 1 | 6 | |
| . | 4 | 8 | 4 |
Because the upper digit (2) in the ones 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 (12).
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 6 | 12 | ||||||
| 2 | 9 | 9 | 10 | ||||
| 2 | 7 | 3 | . | 0 | 0 | 0 | |
| - | 4 | 5 | . | 5 | 1 | 6 | |
| . | 4 | 8 | 4 |
Subtract the numbers in the ones column from the top number:
12-5=7
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 6 | 12 | ||||||
| 2 | 9 | 9 | 10 | ||||
| 2 | 7 | 3 | . | 0 | 0 | 0 | |
| - | 4 | 5 | . | 5 | 1 | 6 | |
| 7 | . | 4 | 8 | 4 |
Subtract the numbers in the tens column from the top number:
6-4=2
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 6 | 12 | ||||||
| 2 | 9 | 9 | 10 | ||||
| 2 | 7 | 3 | . | 0 | 0 | 0 | |
| - | 4 | 5 | . | 5 | 1 | 6 | |
| 2 | 7 | . | 4 | 8 | 4 |
Write 2 in the hundreds place.
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 6 | 12 | ||||||
| 2 | 9 | 9 | 10 | ||||
| 2 | 7 | 3 | . | 0 | 0 | 0 | |
| - | 4 | 5 | . | 5 | 1 | 6 | |
| 2 | 2 | 7 | . | 4 | 8 | 4 |
The solution is: 227.484
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