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Associative property of addition changing the grouping of add once does not change the sum. The option 3 illustrates the associative property of addition. Thus this is the correct option.
<h3>Given-</h3>The options are given in which the associative property of the addition has to be found.
<h3>Associative property </h3>Associative property of addition is the changing the grouping of add once does not change the sum.
- Option 1-
In the above option with changing the bracket the sign of 19 and 12 is changed. This will affect the result of the addition. Hence, option 1 is incorrect.
- Option 2-
In this case, the sign changed. Thus the result of the sum will be different. Hence the option 2 is incorrect.
- Options 3-
In this case, brackets are changed but the sign is not changed. Thus the result will be the same. Hence, option 3 illustrates the associative property of addition. Thus this is the correct option.
- Option 4
In the above case, the sign changed and thus the result will also be changed. therefore option 4 is incorrect.
Hence, option 3 illustrates the associative property of addition. Thus this is the correct option
For more about the properties of the addition, follow the link below-brainly.com/question/1697317