Solution - Long subtraction
151.284
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 6 | 3 | . | 7 | 8 | 8 | |
| - | 1 | 2 | . | 5 | 0 | 4 | |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the thousandths column from the top number:
8-4=4
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 6 | 3 | . | 7 | 8 | 8 | |
| - | 1 | 2 | . | 5 | 0 | 4 | |
| . | 4 |
Subtract the numbers in the hundredths column from the top number:
8-0=8
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 6 | 3 | . | 7 | 8 | 8 | |
| - | 1 | 2 | . | 5 | 0 | 4 | |
| . | 8 | 4 |
Subtract the numbers in the tenths column from the top number:
7-5=2
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 6 | 3 | . | 7 | 8 | 8 | |
| - | 1 | 2 | . | 5 | 0 | 4 | |
| . | 2 | 8 | 4 |
Subtract the numbers in the ones column from the top number:
3-2=1
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 6 | 3 | . | 7 | 8 | 8 | |
| - | 1 | 2 | . | 5 | 0 | 4 | |
| 1 | . | 2 | 8 | 4 |
Subtract the numbers in the tens column from the top number:
6-1=5
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 6 | 3 | . | 7 | 8 | 8 | |
| - | 1 | 2 | . | 5 | 0 | 4 | |
| 5 | 1 | . | 2 | 8 | 4 |
Write 1 in the hundreds place.
| Place value | hundreds | tens | ones | . | tenths | hundredths | thousandths |
| 1 | 6 | 3 | . | 7 | 8 | 8 | |
| - | 1 | 2 | . | 5 | 0 | 4 | |
| 1 | 5 | 1 | . | 2 | 8 | 4 |
The solution is: 151.284
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