-2.23 + ? = 1.15

Answer 1

To find the value of the question mark (?), you can rearrange the equation:

\[ ? = 1.15 + 2.23 \]

Now, calculate the right side:

\[ 1.15 + 2.23 = 3.38 \]

So,

\[ ? = 3.38 \]