Solution - Long subtraction
70
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones |
| 1 | 0 | 0 | |
| 1 | 0 | ||
| - | 2 | 0 | |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the ones column from the top number:
0-0-0=0
| Place value | hundreds | tens | ones |
| 1 | 0 | 0 | |
| 1 | 0 | ||
| - | 2 | 0 | |
| 0 |
Because the upper digit (0) 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 (10).
| Place value | hundreds | tens | ones |
| 0 | 10 | ||
| 1 | 0 | 0 | |
| 1 | 0 | ||
| - | 2 | 0 | |
| 0 |
Subtract the numbers in the tens column from the top number:
10-1-2=7
| Place value | hundreds | tens | ones |
| 0 | 10 | ||
| 1 | 0 | 0 | |
| 1 | 0 | ||
| - | 2 | 0 | |
| 7 | 0 |
Write 0 in the hundreds place.
| Place value | hundreds | tens | ones |
| 0 | 10 | ||
| 1 | 0 | 0 | |
| 1 | 0 | ||
| - | 2 | 0 | |
| 0 | 7 | 0 |
The solution is: 70
How did we do?
Please leave us feedback.Why learn this
Why learn this