Editing Card Sharks (section)

===Money Cards===
The winner of the main game plays the Money Cards bonus game. The original board consisted of a series of eight cards dealt out on three levels; the 2001 revival changed this to seven cards. The champion is staked with a dollar amount before the round begins and wagers money on each card prior to calling higher or lower. A correct call adds the wager to their bank, while a miss deducts it. Prior to 2001, the player was staked with $200 prior to the round.

After calling the first three cards, the last card in the row was moved to the first position in the second row, and the contestant received an additional $200 to wager with the next three cards. The last card in the third row was moved to the first position in the top row, and the contestant made a wager for the final card. The minimum bet for each card was $50 ($100 in the 2001 revival), except for the final card, the "Big Bet" (renamed "Major Wager" for the 2001 revival), where the contestant was required to wager at least half of the money earned thus far.

If a contestant lost all the money banked ("busted") on the first row, the last card called was moved to the first position on the second row and the contestant received another $200 to wager with the final four cards. If the contestant busted after moving up to this level on either the original or 1986 series, the game ended.

If a contestant wagered their entire bank on each card and made a correct prediction each time, the maximum payout was stated to be $28,800 on the original 1970s series, $32,000 on both 1980s series, $51,800 on the 2001 series, and $640,000 on the 2019 series. As of 2021, the only contestant that has successfully achieved this feat is Norma Brown, who won $28,800 in 1978.

On the NBC version, a champion was allowed a maximum of seven wins. On the CBS series, champions were retired either by reaching five wins or surpassing the network’s winnings limit.

Starting in 2019, the player's winnings are represented in oversized $500, $1,000, $5,000, $10,000, and $25,000 chips. The board is now a single row of seven cards, with no additional money given halfway through. Players are given the chance to change any one card during the round. Players are required to physically place chips equal to their bet on a table in front of them on sections labeled "HIGHER" or "LOWER". Prior to the last card, players must bet at least $1,000 on each card. Players who reach the last card without busting are given the option to "cash out" and quit with their current winnings rather than play the final card. If they elect to play, they must gamble at least half their bank on the last card. The maximum possible payout is $640,000.

====Rule changes====
Duplicate cards were originally counted as incorrect guesses, in the same manner as in the main game. Starting on October 20, 1980, a duplicate in the Money Cards rounds was regarded as a "push"; the contestant did not lose their wager, and moved to the next card. The "push" rule remained intact until late in the 2001 revival's run. In the first season of the 2019 revival, a duplicate card was treated as an incorrect guess; in the second season, it was again treated as a push.

Initially, contestants could only change their base card on the bottom level of the board, at the start of the round. This was later altered to allow the contestant to change the base card on each new line of cards if they so desired.

During the 1986–89 version, three extra cards (known as "spare cards") were positioned to the left of the Money Cards board. These cards could be used initially any time to change an undesired card, even to change the same card multiple times, but during the run were later amended to allow only one change per line at any point in the line. The additional amount awarded for moving to the second line increased from $200 to $400. This changed the maximum potential payout to $32,000.

On the 2001 series, each winning contestant's score from the main game was divided by three; therefore, players started the round with $700 to wager with and that amount was added to their score once they reached both the second level ''and'' the Major Wager, which was a ''Card Sharks'' first.

Players can change exactly one card, anywhere on the line, in the 2019 version.