Solution - Long subtraction
8710.5
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
Place value | thousands | hundreds | tens | ones | . | tenths |
8 | 7 | 1 | 8 | |||
- | 7 | . | 5 | |||
. |
Put zeros in the blank number places:
Place value | thousands | hundreds | tens | ones | . | tenths |
8 | 7 | 1 | 8 | . | 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 digit (8) in the next number place which becomes (7) and get (10).
Place value | thousands | hundreds | tens | ones | . | tenths |
7 | 10 | |||||
8 | 7 | 1 | 8 | . | 0 | |
- | 7 | . | 5 | |||
. |
Subtract the numbers in the tenths column from the top number:
10-0-5=5
Place value | thousands | hundreds | tens | ones | . | tenths |
7 | 10 | |||||
8 | 7 | 1 | 8 | . | 0 | |
- | 7 | . | 5 | |||
. | 5 |
Subtract the numbers in the ones column from the top number:
7-7=0
Place value | thousands | hundreds | tens | ones | . | tenths |
7 | 10 | |||||
8 | 7 | 1 | 8 | . | 0 | |
- | 7 | . | 5 | |||
0 | . | 5 |
Write 1 in the tens place.
Place value | thousands | hundreds | tens | ones | . | tenths |
7 | 10 | |||||
8 | 7 | 1 | 8 | . | 0 | |
- | 7 | . | 5 | |||
1 | 0 | . | 5 |
Write 7 in the hundreds place.
Place value | thousands | hundreds | tens | ones | . | tenths |
7 | 10 | |||||
8 | 7 | 1 | 8 | . | 0 | |
- | 7 | . | 5 | |||
7 | 1 | 0 | . | 5 |
Write 8 in the thousands place.
Place value | thousands | hundreds | tens | ones | . | tenths |
7 | 10 | |||||
8 | 7 | 1 | 8 | . | 0 | |
- | 7 | . | 5 | |||
8 | 7 | 1 | 0 | . | 5 |
The solution is: 8710.5
How did we do?
Please leave us feedback.Why learn this
Why learn this