(a) The property of addition used is the commutative property.
(b) The property of addition used is the associative property.
(c) The property of addition used is the identity property.
Fill in the blanks. Then, choose the property of addition you used.
(a) 6 + 7 = 7 + 6
(b) 5 + ( 4 + 3 ) = ( 5 + 4 ) + 3
(c) 5 + 0 =5
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