Question

compute.
18.8 + (-7.5) =
7.9 - 49.35 =

Explanation:

Step1: Compute \( 18.8 + (-7.5) \)

Adding a negative number is the same as subtracting its absolute value. So, \( 18.8 + (-7.5) = 18.8 - 7.5 \).
Calculating \( 18.8 - 7.5 \), we get \( 11.3 \).

Step2: Compute \( 7.9 - 49.35 \)

When subtracting a larger number from a smaller one, the result will be negative. We can rewrite it as \( -(49.35 - 7.9) \).
First, calculate \( 49.35 - 7.9 = 41.45 \). Then, apply the negative sign, so \( 7.9 - 49.35 = -41.45 \).

Answer:

\( 18.8 + (-7.5) = \boldsymbol{11.3} \)
\( 7.9 - 49.35 = \boldsymbol{-41.45} \)