Retirement tax questions

A conversion is no different that any other Traditional IRA distribution that is 100% taxable.  The box 2a amount goes  on line 4b and nothing on 4a, but there are many exceptions which is why I had to ask so many questions.   If the Traditional IRA had any non-taxable basis, then the answer would be different.  If there were other 1099-R's besides those 3 then the answer might be different.

(Some people want to interrupt the convoluted line 4 IRS rules differently.)
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**