Solution - Long subtraction
53.18
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 1 | 2 | 5 | . | 4 | 8 | |
| - | 7 | 2 | . | 3 | ||
| . |
Put zeros in the blank number places:
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 1 | 2 | 5 | . | 4 | 8 | |
| - | 7 | 2 | . | 3 | 0 | |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
8-0=8
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 1 | 2 | 5 | . | 4 | 8 | |
| - | 7 | 2 | . | 3 | 0 | |
| . | 8 |
Subtract the numbers in the tenths column from the top number:
4-3=1
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 1 | 2 | 5 | . | 4 | 8 | |
| - | 7 | 2 | . | 3 | 0 | |
| . | 1 | 8 |
Subtract the numbers in the ones column from the top number:
5-2=3
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 1 | 2 | 5 | . | 4 | 8 | |
| - | 7 | 2 | . | 3 | 0 | |
| 3 | . | 1 | 8 |
Because the upper digit (2) in the tens 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 (12).
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 0 | 12 | |||||
| 1 | 2 | 5 | . | 4 | 8 | |
| - | 7 | 2 | . | 3 | 0 | |
| 3 | . | 1 | 8 |
Subtract the numbers in the tens column from the top number:
12-7=5
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 0 | 12 | |||||
| 1 | 2 | 5 | . | 4 | 8 | |
| - | 7 | 2 | . | 3 | 0 | |
| 5 | 3 | . | 1 | 8 |
Write 0 in the hundreds place.
| Place value | hundreds | tens | ones | . | tenths | hundredths |
| 0 | 12 | |||||
| 1 | 2 | 5 | . | 4 | 8 | |
| - | 7 | 2 | . | 3 | 0 | |
| 0 | 5 | 3 | . | 1 | 8 |
The solution is: 53.18
How did we do?
Please leave us feedback.Why learn this
Why learn this