
Concept explainers
To find: which property is used

Answer to Problem 14STP
Associative property of addition is used.
Explanation of Solution
Given:
Calculation:
Given equation:
Here, in the given equation, grouping of number is changed.
According to the associative property of addition,
Property is same as equation given in the problem. The associative property states that you can add or multiply regardless of how the numbers are grouped.
Conclusion:
Hence, associative property of addition is used.
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