What is a ten bag penalty in spades?

An extremely common scoring variant is designed to penalize players for underestimating the number of tricks they will take, while at the same time not removing the possible strategy of intentionally taking overtricks, or "bags", in order to "set" the other team. This is accomplished by keeping track of bags in the ones place on the scorecard, and assessing a 100 point penalty when 10 bags are accumulated and the ones place rolls over.[8]

For example, if a team's bid is 5 tricks and they take 8 tricks, the score for the hand is 53 points. If the team's total score before this hand had a first digit of 7 or more, for instance 108, the team has "bagged out" or been "sandbagged"; the hand's score is added to the total and then 100 points are deducted. In the example, the score would be 61 points after the penalty. The 10 bags could be considered to make the penalty 90 points (the penalty can instead be 110 points to offset this, or the ones' place can simply not be carried when adding). Anything over 10 sandbags is retained in the first digit and count towards future overtricks; a player or team can bag out multiple times in a game