Question

Complete the problem by using your calculator

11 – (–9)


Choose the best answer from the options below:
A 20
B 2
C -20
D -2

Answer 1

To solve the problem \(11 - (-9)\), you can first remember that subtracting a negative number is the same as adding a positive number. Therefore, this can be simplified as follows:

\[
11 - (-9) = 11 + 9 = 20
\]

So, the best answer is:

**A. 20**