Solution - Long subtraction
20.5
Step-by-step explanation
1. Rewrite the numbers from top to bottom, aligned by their place values
Place value | hundreds | tens | ones | . | tenths | hundredths |
1 | 2 | 6 | . | 5 | 5 | |
- | 1 | 0 | 6 | . | 0 | 5 |
. |
2. Subtract the numbers using long subtraction method
Subtract the numbers in the hundredths column from the top number:
5-5=0
Place value | hundreds | tens | ones | . | tenths | hundredths |
1 | 2 | 6 | . | 5 | 5 | |
- | 1 | 0 | 6 | . | 0 | 5 |
. | 0 |
Subtract the numbers in the tenths column from the top number:
5-0=5
Place value | hundreds | tens | ones | . | tenths | hundredths |
1 | 2 | 6 | . | 5 | 5 | |
- | 1 | 0 | 6 | . | 0 | 5 |
. | 5 | 0 |
Subtract the numbers in the ones column from the top number:
6-6=0
Place value | hundreds | tens | ones | . | tenths | hundredths |
1 | 2 | 6 | . | 5 | 5 | |
- | 1 | 0 | 6 | . | 0 | 5 |
0 | . | 5 | 0 |
Subtract the numbers in the tens column from the top number:
2-0=2
Place value | hundreds | tens | ones | . | tenths | hundredths |
1 | 2 | 6 | . | 5 | 5 | |
- | 1 | 0 | 6 | . | 0 | 5 |
2 | 0 | . | 5 | 0 |
Subtract the numbers in the hundreds column from the top number:
1-1=0
Place value | hundreds | tens | ones | . | tenths | hundredths |
1 | 2 | 6 | . | 5 | 5 | |
- | 1 | 0 | 6 | . | 0 | 5 |
0 | 2 | 0 | . | 5 | 0 |
The solution is: 20.5
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