Question

Which of the following number sentences illustrates the associative property of addition?

35 + 2 = 2 + 35
8+ 0 = 8
14 + 10 = 24
19 + (1 + 17) = (19 + 1) + 17

Answer 1

the last one

Explanation:

think of the numbers 'associating' with each other

in 19 + (1 + 17) the numbers 1 and 17 are associating

in (19 + 1) + 17 the numbers 19 and 1 are associating