Question

Use the Associative Property of Addition to find the total of 1, 10, and 18 in two different ways.

Answer 1

The answer is 
(1 + 10) + 18 = 11 + 18 = 29; 1 + (10 + 18) = 1 + 28 = 29 

Answer 2

1+(10+18)=(1+10)+18

1+(28)=11+18

29=29 is the answer .

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