The property of multiplying by 0 for real numbers states that anything multiplied by 0 is always 0. This is stated mathematically as a·0 = 0. Sometimes this is called the multiplicative property of 0.

Another way to think of the property of multiplying by zero is to assume, for example, one is starting with three groups of two objects. How many objects will one have if one takes zero of the groups? One will have zero objects. So 0·2=0. 
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