Solution - Long subtraction
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 | 2 | . | 1 | 6 | 9 | |
| - | 8 | 8 | . | 4 | 8 | 7 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the thousandths column from the top number:
9-7=2
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 9 | 2 | . | 1 | 6 | 9 | |
| - | 8 | 8 | . | 4 | 8 | 7 |
| . | 2 |
Because the upper digit (6) in the hundredths column is too small to get a positive difference, borrow 1 from the digit (1) in the next number place which becomes (0) and get (16).
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 0 | 16 | |||||
| 9 | 2 | . | 1 | 6 | 9 | |
| - | 8 | 8 | . | 4 | 8 | 7 |
| . | 2 |
Subtract the numbers in the hundredths column from the top number:
16-8=8
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 0 | 16 | |||||
| 9 | 2 | . | 1 | 6 | 9 | |
| - | 8 | 8 | . | 4 | 8 | 7 |
| . | 8 | 2 |
Because the upper digit (0) in the tenths column is too small to get a positive difference, borrow 1 from the digit (2) in the next number place which becomes (1) and get (10).
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 10 | |||||
| 0 | 16 | |||||
| 9 | 2 | . | 1 | 6 | 9 | |
| - | 8 | 8 | . | 4 | 8 | 7 |
| . | 8 | 2 |
Subtract the numbers in the tenths column from the top number:
10-4=6
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 10 | |||||
| 0 | 16 | |||||
| 9 | 2 | . | 1 | 6 | 9 | |
| - | 8 | 8 | . | 4 | 8 | 7 |
| . | 6 | 8 | 2 |
Because the upper digit (1) in the ones column is too small to get a positive difference, borrow 1 from the digit (9) in the next number place which becomes (8) and get (11).
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 11 | |||||
| 1 | 10 | |||||
| 0 | 16 | |||||
| 9 | 2 | . | 1 | 6 | 9 | |
| - | 8 | 8 | . | 4 | 8 | 7 |
| . | 6 | 8 | 2 |
Subtract the numbers in the ones column from the top number:
11-8=3
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 11 | |||||
| 1 | 10 | |||||
| 0 | 16 | |||||
| 9 | 2 | . | 1 | 6 | 9 | |
| - | 8 | 8 | . | 4 | 8 | 7 |
| 3 | . | 6 | 8 | 2 |
Subtract the numbers in the tens column from the top number:
8-8=0
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 8 | 11 | |||||
| 1 | 10 | |||||
| 0 | 16 | |||||
| 9 | 2 | . | 1 | 6 | 9 | |
| - | 8 | 8 | . | 4 | 8 | 7 |
| 0 | 3 | . | 6 | 8 | 2 |
The solution is: 3.682
How did we do?
Please leave us feedback.Why learn this
Why learn this