What Obama needs to know about math: (estimated)
$1,000 = one thousand dollars = 3 x the 10 year annual average ($369) for Biden's charitable giving.
$1,000,000 = one million dollars =10% of Obama's net worth, 25% of Romney's 2011 charitable giving.
$1,000,000,000 = one billion dollars = U.S. government spending for around 2.5 hours.
$1,000,000,000,000 = one trillion dollars = every person in the U.S. owes around $3209.00.
$16,000,000,000,000 = 16 trillion dollars = per person U.S. debt is at $51,344.