Foundation cinder block crack

[Sophia Wang]

We are evaluating a 3 bedroom, 2 full bath rancher, with half basement. The only thing we are not sure is there are a few cracks on the cinder block foundation, which can be seen from outside as well as the inside basement.

Pictures from outside:

From inside, there are 2 cracks on each side of the basement:

How bad are these cracks? and what is the appropriate way to fix them?

Appreciate your input!