DON'T BET ON IT ...Danica McKellar, the math guru who starred in "The Wonder Years" ... says the Powerball odds are so insane, investing in a ticket makes no cents.
Danica -- who graduated summa cum laude with a math degree from UCLA -- clearly realizes someone could win the $800 million jackpot, but seriously folks ...
See also
Powerball Dreams -- Hookers and Blow (VIDEO)
$218 Million Lotto Winner Merle Butler -- I'm NOT Giving Away My Money ... Instagram Account's a Hoax
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