คำตอบ - Long subtraction
1.53
คำอธิบายทีละขั้นตอน
1. Rewrite the numbers from top to bottom, aligned by their place values
| Place value | ones | . | tenths | hundredths |
| 2 | . | 5 | 3 | |
| - | 1 | |||
| . |
Put zeros in the blank number places:
| Place value | ones | . | tenths | hundredths |
| 2 | . | 5 | 3 | |
| - | 1 | . | 0 | 0 |
| . |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
3-0=3
| Place value | ones | . | tenths | hundredths |
| 2 | . | 5 | 3 | |
| - | 1 | . | 0 | 0 |
| . | 3 |
Subtract the numbers in the tenths column from the top number:
5-0=5
| Place value | ones | . | tenths | hundredths |
| 2 | . | 5 | 3 | |
| - | 1 | . | 0 | 0 |
| . | 5 | 3 |
Subtract the numbers in the ones column from the top number:
2-1=1
| Place value | ones | . | tenths | hundredths |
| 2 | . | 5 | 3 | |
| - | 1 | . | 0 | 0 |
| 1 | . | 5 | 3 |
The solution is: 1.53
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