Form 1098-T Box 1 Amount - Do I Claim th Box 1 Amount, or What I Paid for Tuition in the Calendar Year 2020.

Box 1 of 2020 Form 1098-T (Payments received for qualified tuition) shows $300. 

 

I paid $200 for academic periods in 2020 and $100 for academic periods in 2021.  (Given that Box 7 is checked, I guess that is highlighting that the school entered $300 rather than $200.)    

 

What amount do I claim on my 2020 1040? 

 

The $300 in Box 1 or the $200 I paid for academic periods in 2020? 

 

(In the later case I guess I would make a note to to claim the $100 for the academic period in 2021, when I file my 2021 1040.)