Where should I put these 3 ab exercises?

Allocate one for each day of a push-pull-legs routine.

1) Hanging leg raise

Where should I put these 3 ab exercises?

2) Ab wheel rollout

Where should I put these 3 ab exercises?

3) Cable crunch

Where should I put these 3 ab exercises?
Updates
+1 y
Also: Read my response to @BoopBoopBeep

There is important supplemental info there that's too long to paste here.
Where should I put these 3 ab exercises?
Post Opinion