CHICAGO (AP) — It's a tricky math problem to get to the $2.7 billion that Gov. Pat Quinn wants cut out of Illinois's projected Medicaid spending, and four lawmakers designated to take a first shot at it will have a tough time figuring out what to subtract.

They'll look at services such as the obesity surgery that helped 41-year-old Cicero resident Nova Taggart get off diabetes drugs. They'll look at payments to hospitals that are already struggling. Should people on Medicaid be able to get two pairs of eyeglasses each year? Or one pair every other year? Should poor adults get their dental care covered?

A menu of possible cuts prepared by Quinn's administration includes few dollar figures and those numbers don't add up to $2.7 billion. That's because specific dollar amounts for various options are still being calculated for the bipartisan legislative working group, Quinn senior health adviser Michael Gelder said Thursday, a day after the governor said Medicaid "is on the brink of collapse" in his budget address.