Question

Select the number property that will justify the step in the following expression.

6 + (14 + 70) =
(6 + 14) + 70 = transitiveidentity - additionassociative - additioncommutative - addition
20 + 70 = 90

Answer 1

Additioncommutative looks the most appropriate answer

Answer 2

a + (b + c) = (a + b) + c

This identity is associative.

Addition Associative.