I paid $3100 in Soc Sec deductions (box 4) and $725 in box 6 Medicare, yet my Mass return shows only $2000 deduction on line 11a on the MA return, Is this right?

Those aren’t the same thing.  It’s deducting the federal taxable amount from your 1040 line 6b.

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

To see the Social Security Benefits Calculation Worksheet  in Turbo Tax Online version you would have to save your return with all the worksheets to your computer