Penyelesaian - Long subtraction
52.5
Penjelasan langkah demi langkah
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths |
| 6 | 0 | |||
| - | 7 | . | 5 | |
| . |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths |
| 6 | 0 | . | 0 | |
| - | 7 | . | 5 | |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the tenths column is too small to get a positive difference, borrow 1 from the number to the left (60) which becomes (59) and get (10).
| Place value | tens | ones | . | tenths |
| 5 | 10 | |||
| 6 | 0 | . | 0 | |
| - | 7 | . | 5 | |
| . |
Subtract the numbers in the tenths column from the top number:
10-0-5=5
| Place value | tens | ones | . | tenths |
| 5 | 10 | |||
| 6 | 0 | . | 0 | |
| - | 7 | . | 5 | |
| . | 5 |
Subtract the numbers in the ones column from the top number:
9-7=2
| Place value | tens | ones | . | tenths |
| 5 | 10 | |||
| 6 | 0 | . | 0 | |
| - | 7 | . | 5 | |
| 2 | . | 5 |
Write 5 in the tens place.
| Place value | tens | ones | . | tenths |
| 5 | 10 | |||
| 6 | 0 | . | 0 | |
| - | 7 | . | 5 | |
| 5 | 2 | . | 5 |
The solution is: 52.5
Mengapa belajar ini
Learn more with Tiger
Why learn this