The AEI analysis warns that these numbers change from year to year, but it concludes that by eliminating these two deductions and a few other smaller ones, Mr. Romney can make his math add up.

WSJ: Review & Outlook: Mathematically Possible

Lower Taxes, Fewer Deductions: Are Romney and Ryan Dodging the Specifics? and Fact-checking Romney-Ryan: Does the math add up? and A Progressive Tax Code is Economically Destructive Lowering, not raise, the top marginal rate is the right direction.

FORBES: No, I'm not voting for Obama

Does the math add up?

FORBES: Lower Taxes, Fewer Deductions: Are Romney and Ryan Dodging the Specifics?

The numbers need to add up, the math needs to work and the team cannot continue to be mum on the details.

FORBES: What The VP Debate Taught Us About Romney/Ryan - and Didn't Tell Us About Tax

Do the math: Add the population of this class of people together and compare with the class of people that use iphone, the result with surprise you.

FORBES: Three Areas Of Blackberry 10 That Will Decide RIM's Fate

But the math has to add up.

WHITEHOUSE: The White House

Despite the faith in the freemium business model of a lot of my colleagues in Silicon Valley, the math does not add up, and that is why I ultimately decided not to embrace the freemium business model when I founded my company four years ago.

FORBES: Why Freemium Isn't Free

If you want to inspire more young people to look at science, technology, engineering, and math (STEM or STEAM if you prefer to add Art in there, too), then buy a simple Joey-inspired bracelet and look for him at the Bay Area Maker Faire.

FORBES: Ellen DeGeneres Needs A Marshmallow Cannon from Joey Hudy