Solution - Long subtraction
100.2
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | hundreds | tens | ones | . | tenths |
| 3 | 7 | 3 | . | 2 | |
| - | 2 | 7 | 3 | ||
| . |
Put zeros in the blank number places:
| Place value | hundreds | tens | ones | . | tenths |
| 3 | 7 | 3 | . | 2 | |
| - | 2 | 7 | 3 | . | 0 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the tenths column from the top number:
2-0=2
| Place value | hundreds | tens | ones | . | tenths |
| 3 | 7 | 3 | . | 2 | |
| - | 2 | 7 | 3 | . | 0 |
| . | 2 |
Subtract the numbers in the ones column from the top number:
3-3=0
| Place value | hundreds | tens | ones | . | tenths |
| 3 | 7 | 3 | . | 2 | |
| - | 2 | 7 | 3 | . | 0 |
| 0 | . | 2 |
Subtract the numbers in the tens column from the top number:
7-7=0
| Place value | hundreds | tens | ones | . | tenths |
| 3 | 7 | 3 | . | 2 | |
| - | 2 | 7 | 3 | . | 0 |
| 0 | 0 | . | 2 |
Subtract the numbers in the hundreds column from the top number:
3-2=1
| Place value | hundreds | tens | ones | . | tenths |
| 3 | 7 | 3 | . | 2 | |
| - | 2 | 7 | 3 | . | 0 |
| 1 | 0 | 0 | . | 2 |
The solution is: 100.2
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