How to attack "Fill in a Table Questions " in TOEFL?

Hi
In all the reading videos from GREG , I couldn’t find how to approach "Fill in a Table Questions " types.
Can someone share details if there exists such video from GREG.
Also, please advice if this should be handled like a summary question and answered first?
But after attempting a question of this type, i felt that i should have approached it at the end, since by that time i would have read most part of the passage multiple times and understood well on the inside details.

Appreciate your help

Can somebody please answer