Solution - Long subtraction
131.441
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 |
| 3 | 4 | 7 | . | 8 | |||
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . |
Put zeros in the blank number places:
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . |
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 (80) which becomes (79) and get (10).
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . |
Subtract the numbers in the thousandths column from the top number:
10-0-9=1
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . | 1 |
Subtract the numbers in the hundredths column from the top number:
9-5=4
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . | 4 | 1 |
Subtract the numbers in the tenths column from the top number:
7-3=4
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| . | 4 | 4 | 1 |
Subtract the numbers in the ones column from the top number:
7-6=1
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| 1 | . | 4 | 4 | 1 |
Subtract the numbers in the tens column from the top number:
4-1=3
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| 3 | 1 | . | 4 | 4 | 1 |
Subtract the numbers in the hundreds column from the top number:
3-2=1
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 7 | 9 | 10 | |||||
| 3 | 4 | 7 | . | 8 | 0 | 0 | |
| - | 2 | 1 | 6 | . | 3 | 5 | 9 |
| 1 | 3 | 1 | . | 4 | 4 | 1 |
The solution is: 131.441
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