Retirement tax questions

In response to:

"Look at your 1040 line 4 a & 4b.   The box 1 amount should be on 4b.  Your total AGI on line 8a  and that taxable amount after the deduction on line 11b.    If 11b is non-zero then there is a taxable amount."

 

Boxes:

1) blank, as no w2 income for 2019

4a) blank 4b) 10,295

8a) blank 8b) 12,204

11b) 4

 

(The rest of my income is from the dividends and capital gains boxes)

 

This is from the 2019 submission using the TurboTax program