Relationship between Add and Subtract

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Relationship Between Add and Subtract: Practice

What number should replace X?

00:00

If X + X = X,
then X - X = X

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Relationship Between Subtract and Add: Practice

What number should replace X?

00:00

If X - X = X,
then X + X = X

Press the Start Button To Begin

You have 0 correct and 0 incorrect.

This is 0 percent correct.