1.  Which property of addition is represented by the following equation? 3 + 0 = 3 

Hint
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2.  Which equation shows the commutative property of addition? 
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3.  Which property of addition is represented by the following equation? 7 + 2 = 2 + 7 
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4.  Which equation shows the associative property of addition? 
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5.  Which property of addition is represented by the following equation? 7 + (3 + 4) = (7 + 3) + 4 
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6.  Which property of addition is represented by the following equation? t + 0 = t 
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7.  Which equation shows the identity property of addition? 
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