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Which property allows us to write 7 + (3 + 9) = (7 + 3) + 9?

Class 6Properties of Whole NumbersWhole Numbers
  • AAssociative property of addition
  • BCommutative property of addition
  • CDistributive property
  • DClosure property

Step-by-Step Solution

Regrouping the numbers being added without changing the order is the associative property of addition.
Answer: A) Associative property of addition

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