After you file

Yes, my $1,100 was on line 30. None of my other kids turned 17.  First check $4,400. Second check $3,600.

I have four dependents as of 2019, five as of 2020. I don't recall which 2 boxes I had to put the other amounts in. (My return was accepted 2/12 so I've forgotten quite a bit) but I do recall triple checking to make sure I had the math done correctly.