Solution - Long subtraction
4.046
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | . | 6 | 3 | ||
| - | 1 | . | 5 | 8 | 4 |
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | . | 6 | 3 | 0 | |
| - | 1 | . | 5 | 8 | 4 |
| . |
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 digit (3) in the next number place which becomes (2) and get (10).
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 10 | ||||
| 5 | . | 6 | 3 | 0 | |
| - | 1 | . | 5 | 8 | 4 |
| . |
Subtract the numbers in the thousandths column from the top number:
10-0-4=6
| Place value | ones | . | tenths | hundredths | thousandths |
| 2 | 10 | ||||
| 5 | . | 6 | 3 | 0 | |
| - | 1 | . | 5 | 8 | 4 |
| . | 6 |
Because the upper digit (2) in the hundredths 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 (12).
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | 12 | ||||
| 2 | 10 | ||||
| 5 | . | 6 | 3 | 0 | |
| - | 1 | . | 5 | 8 | 4 |
| . | 6 |
Subtract the numbers in the hundredths column from the top number:
12-8=4
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | 12 | ||||
| 2 | 10 | ||||
| 5 | . | 6 | 3 | 0 | |
| - | 1 | . | 5 | 8 | 4 |
| . | 4 | 6 |
Subtract the numbers in the tenths column from the top number:
5-5=0
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | 12 | ||||
| 2 | 10 | ||||
| 5 | . | 6 | 3 | 0 | |
| - | 1 | . | 5 | 8 | 4 |
| . | 0 | 4 | 6 |
Subtract the numbers in the ones column from the top number:
5-1=4
| Place value | ones | . | tenths | hundredths | thousandths |
| 5 | 12 | ||||
| 2 | 10 | ||||
| 5 | . | 6 | 3 | 0 | |
| - | 1 | . | 5 | 8 | 4 |
| 4 | . | 0 | 4 | 6 |
The solution is: 4.046
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