Retirement tax questions

my apologies - 1-1099R for surviv spouse (3 copies of same) - 2 distrib lines for box 7 - one as 7 and one as 4. Deceased spouse- 1-1099R  (3 copies of same) - 1 Distrib line - box 7 as 7. Problem is 1040A is showing box 11b as 5100 tax amt when I believe it to be 15,272.  I cannot determine what to change in turbo app to correct this. appreciate ur patience and info. I have asked for brief call at 230p today if easier.