Solution - Long subtraction
81.66
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 3 | . | 2 | 6 | |
| - | 1 | . | 6 | ||
| . |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 3 | . | 2 | 6 | |
| - | 1 | . | 6 | 0 | |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
6-0=6
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 3 | . | 2 | 6 | |
| - | 1 | . | 6 | 0 | |
| . | 6 |
Because the upper digit (2) in the tenths 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 (12).
| Place value | tens | ones | . | tenths | hundredths |
| 2 | 12 | ||||
| 8 | 3 | . | 2 | 6 | |
| - | 1 | . | 6 | 0 | |
| . | 6 |
Subtract the numbers in the tenths column from the top number:
12-6=6
| Place value | tens | ones | . | tenths | hundredths |
| 2 | 12 | ||||
| 8 | 3 | . | 2 | 6 | |
| - | 1 | . | 6 | 0 | |
| . | 6 | 6 |
Subtract the numbers in the ones column from the top number:
2-1=1
| Place value | tens | ones | . | tenths | hundredths |
| 2 | 12 | ||||
| 8 | 3 | . | 2 | 6 | |
| - | 1 | . | 6 | 0 | |
| 1 | . | 6 | 6 |
Write 8 in the tens place.
| Place value | tens | ones | . | tenths | hundredths |
| 2 | 12 | ||||
| 8 | 3 | . | 2 | 6 | |
| - | 1 | . | 6 | 0 | |
| 8 | 1 | . | 6 | 6 |
The solution is: 81.66
How did we do?
Please leave us feedback.Why learn this
Why learn this