Find the difference.

Question

​$20.9020.90minus−​$13.4213.42
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Part 1
​$20.9020.90minus−​$13.4213.42equals=​$ enter your response here
​(Type a whole number or a​ decimal.)

Answer 1

To find the difference between \( 20.90 \) and \( 13.42 \), you can perform the subtraction:

\[ 20.90 - 13.42 \]

To line up the decimal points, you can visualize it like this:

  20.90
- 13.42
_______

Now, perform the subtraction starting from the rightmost column:

1. In the hundredths place: \( 0 - 2 \) requires borrowing, so it turns into \( 10 - 2 = 8 \) (borrowed \( 1 \) from the tenths place).
2. In the tenths place: \( 8 - 4 = 4 \) (after borrowing).
3. In the units place: \( 10 - 3 = 7 \) (after borrowing \( 1 \) from \( 2 \)).
4. In the tens place: \( 2 - 1 = 1 \).

Putting it all together gives:

\[ 20.90 - 13.42 = 7.48 \]

Therefore, the answer is:

\[ \boxed{7.48} \]