Social Security Benefits Worksheet

Hi. When I just completed my 1040SR form on my Turbo Tax software, the number used in line 8 on the Social Security Benefits Worksheet came out to $32,000 to deduct. Me and my wife and both over 65. Our new standard deduction is $46,700 this year for seniors on the 1040SR form. 

 

My question is, why isn't it also $46,700 on line 8 of the Social Security Benefits worksheet? Why only $32,000? Please explain.

 

Thank you,

Phil T.