Subtracting by stacking is when you put the numbers in the problem on top of each other.

Using the stacking way for subtraction is useful for bigger numbers.

**It is very important to remember that the number that always goes on top is the number you are subtracting from!**

For example, if the problem is 46-29, then the 46 always goes on top, because that is the number we are subtracting 29 from.

Using the stacking way for subtraction is useful for bigger numbers.

For example, if the problem is 46-29, then the 46 always goes on top, because that is the number we are subtracting 29 from.

-49

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Do you think you are a wizard in the method of stacking subtraction? If so, let's play a game! Click on __this link__ to go play a tic-tac-toe game that involves subtraction using stacking. Make sure to find a friend or partner because you need two players. Good luck.