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This is because of the identity property of multiplication

Anything mutiply by zero is zero.

When you multiply a number by a different number, you take as many groups of the first number as there are of the second number. For example, multiplying 2 by 3, you are taking three groups of 2. Three groups of two things are equal to six things; 2 times 3 = 6.

If you multiply by zero, you are taking zero groups of a number. Zero groups of something is nothing (zero).

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Q: Why is 0 multiply by 0 equals 0?
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Does 0 squared equal 1?

No, it equals 0. If you have nothing, and you multiply it by nothing, you still have nothing.


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