Solution - Long subtraction
67.73
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 9 | . | 2 | ||
| - | 1 | . | 4 | 7 | |
| . |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths |
| 6 | 9 | . | 2 | 0 | |
| - | 1 | . | 4 | 7 | |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the hundredths 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 |
| 1 | 10 | ||||
| 6 | 9 | . | 2 | 0 | |
| - | 1 | . | 4 | 7 | |
| . |
Subtract the numbers in the hundredths column from the top number:
10-0-7=3
| Place value | tens | ones | . | tenths | hundredths |
| 1 | 10 | ||||
| 6 | 9 | . | 2 | 0 | |
| - | 1 | . | 4 | 7 | |
| . | 3 |
Because the upper digit (1) in the tenths 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 |
| 8 | 11 | ||||
| 1 | 10 | ||||
| 6 | 9 | . | 2 | 0 | |
| - | 1 | . | 4 | 7 | |
| . | 3 |
Subtract the numbers in the tenths column from the top number:
11-4=7
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 11 | ||||
| 1 | 10 | ||||
| 6 | 9 | . | 2 | 0 | |
| - | 1 | . | 4 | 7 | |
| . | 7 | 3 |
Subtract the numbers in the ones column from the top number:
8-1=7
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 11 | ||||
| 1 | 10 | ||||
| 6 | 9 | . | 2 | 0 | |
| - | 1 | . | 4 | 7 | |
| 7 | . | 7 | 3 |
Write 6 in the tens place.
| Place value | tens | ones | . | tenths | hundredths |
| 8 | 11 | ||||
| 1 | 10 | ||||
| 6 | 9 | . | 2 | 0 | |
| - | 1 | . | 4 | 7 | |
| 6 | 7 | . | 7 | 3 |
The solution is: 67.73
How did we do?
Please leave us feedback.Why learn this
Why learn this