If Medicare Part B was deducted from benefits but why was it added as income on tax form?

[rltmath]

Box 5 has a net benefit for 2019 and Medicare part B has an amount deducted from benefits but these two were added

[VolvoGirl]

Where is it added, what line or box?  Medicare Part B will go to Schedule A as an itemized deduction if you don't take the Standard Deduction.  

[VolvoGirl]

Social Security shows up on 1040 line 5a and the taxable amount on 5b.
Up to 85% of Social Security becomes taxable when all your other income plus 1/2 your social security, reaches:
Married Filing Jointly: $32,000
Single or head of household: $25,000
Married Filing Separately: 0