Question

Compute.
-6.43 - 22.3 = _
27.8 + (-49.53) = _

Answer 1

Let's compute each expression step by step.

1. For the first expression:
\[
-6.43 - 22.3 = -6.43 + (-22.3)
\]
When adding two negative numbers, you add their absolute values and keep the negative sign:
\[
= - (6.43 + 22.3) = - (28.73) = -28.73
\]

2. For the second expression:
\[
27.8 + (-49.53) = 27.8 - 49.53
\]
When subtracting, we can rearrange it as:
\[
= 27.8 - 49.53 = - (49.53 - 27.8)
\]
Now, let's compute \(49.53 - 27.8\):
\[
49.53 - 27.8 = 21.73
\]
Therefore,
\[
27.8 + (-49.53) = -21.73
\]

Putting it all together, the results are:
-6.43 - 22.3 = -28.73
27.8 + (-49.53) = -21.73