Solution - Long subtraction
53.029
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 9 | 4 | . | 9 | |||
| - | 4 | 1 | . | 8 | 7 | 1 |
| . |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 9 | 4 | . | 9 | 0 | 0 | |
| - | 4 | 1 | . | 8 | 7 | 1 |
| . |
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 (90) which becomes (89) and get (10).
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 9 | 10 | ||||
| 9 | 4 | . | 9 | 0 | 0 | |
| - | 4 | 1 | . | 8 | 7 | 1 |
| . |
Subtract the numbers in the thousandths column from the top number:
10-0-1=9
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 9 | 10 | ||||
| 9 | 4 | . | 9 | 0 | 0 | |
| - | 4 | 1 | . | 8 | 7 | 1 |
| . | 9 |
Subtract the numbers in the hundredths column from the top number:
9-7=2
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 9 | 10 | ||||
| 9 | 4 | . | 9 | 0 | 0 | |
| - | 4 | 1 | . | 8 | 7 | 1 |
| . | 2 | 9 |
Subtract the numbers in the tenths column from the top number:
8-8=0
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 9 | 10 | ||||
| 9 | 4 | . | 9 | 0 | 0 | |
| - | 4 | 1 | . | 8 | 7 | 1 |
| . | 0 | 2 | 9 |
Subtract the numbers in the ones column from the top number:
4-1=3
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 9 | 10 | ||||
| 9 | 4 | . | 9 | 0 | 0 | |
| - | 4 | 1 | . | 8 | 7 | 1 |
| 3 | . | 0 | 2 | 9 |
Subtract the numbers in the tens column from the top number:
9-4=5
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 9 | 10 | ||||
| 9 | 4 | . | 9 | 0 | 0 | |
| - | 4 | 1 | . | 8 | 7 | 1 |
| 5 | 3 | . | 0 | 2 | 9 |
The solution is: 53.029
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