We are given the following sum
[tex](3+9)+10=22[/tex]
We are asked to create an equivalent addition sentence that illustrates the associative property in addition.
Recall that the associative property of addition is given by
[tex](a+b)+c=a+(b+c)[/tex]
This property states that changing the grouping of numbers yields the same sum.
This means that you can re-group the numbers as you like.
Let us apply this property to re-write the given sum as
[tex]3+\mleft(9+10\mright)=22[/tex]
Therefore, the above sum shows an equivalent addition sentence that illustrates the associative property in addition.
