Newly Introduced Vocabulary - Addition and Subtraction

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    Associative Property

    You can add regardless of how the numbers are grouped. ‘Grouped’  means 'how you use parenthesis'

    (7+9) + 4 = 7 + (9+4)

    Commutative Property

    You can change the order of the numbers you are adding, and it will not change the sum.

    6 + 5 = 5 + 6