a. -25 + (-15) = ... b. -30 + 30 = ...

Name: a. -25 + (-15) = ... b. -30 + 30 = ...
Uploaded: 2023-12-10T03:59:08.000Z
Duration: PT2M35.648S
Description: a. -25 + (-15) = ... b. -30 + 30 = ...