Penyelesaian - Long subtraction
Penjelasan langkah demi langkah
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 4 | 7 | . | 2 | |||
| - | 6 | . | 3 | 0 | 7 | |
| . |
Put zeros in the blank number places:
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 4 | 7 | . | 2 | 0 | 0 | |
| - | 6 | . | 3 | 0 | 7 | |
| . |
2. Subtract the numbers using long subtraction method
Because the upper digit (0) in the thousandths column is too small to get a positive difference, borrow 1 from the number to the left (20) which becomes (19) and get (10).
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 9 | 10 | ||||
| 4 | 7 | . | 2 | 0 | 0 | |
| - | 6 | . | 3 | 0 | 7 | |
| . |
Subtract the numbers in the thousandths column from the top number:
10-0-7=3
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 9 | 10 | ||||
| 4 | 7 | . | 2 | 0 | 0 | |
| - | 6 | . | 3 | 0 | 7 | |
| . | 3 |
Subtract the numbers in the hundredths column from the top number:
9-0=9
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 9 | 10 | ||||
| 4 | 7 | . | 2 | 0 | 0 | |
| - | 6 | . | 3 | 0 | 7 | |
| . | 9 | 3 |
Because the upper digit (1) in the tenths column is too small to get a positive difference, borrow 1 from the digit (7) in the next number place which becomes (6) and get (11).
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 6 | 11 | |||||
| 1 | 9 | 10 | ||||
| 4 | 7 | . | 2 | 0 | 0 | |
| - | 6 | . | 3 | 0 | 7 | |
| . | 9 | 3 |
Subtract the numbers in the tenths column from the top number:
11-3=8
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 6 | 11 | |||||
| 1 | 9 | 10 | ||||
| 4 | 7 | . | 2 | 0 | 0 | |
| - | 6 | . | 3 | 0 | 7 | |
| . | 8 | 9 | 3 |
Subtract the numbers in the ones column from the top number:
6-6=0
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 6 | 11 | |||||
| 1 | 9 | 10 | ||||
| 4 | 7 | . | 2 | 0 | 0 | |
| - | 6 | . | 3 | 0 | 7 | |
| 0 | . | 8 | 9 | 3 |
Write 4 in the tens place.
| Place value | tens | ones | . | tenths | hundredths | thousandths |
| 6 | 11 | |||||
| 1 | 9 | 10 | ||||
| 4 | 7 | . | 2 | 0 | 0 | |
| - | 6 | . | 3 | 0 | 7 | |
| 4 | 0 | . | 8 | 9 | 3 |
The solution is: 40.893
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