Question

verify the associative property of addition and subtraction of the following integers - 1 , 3, - 2

Answer 1

$0. - 1 - 2 - 3$

Answer 2

$(a + b) + c = a + (b + c) \\ ( - 1 + 3) + - 2 = - 1 + (3 + - 2) \\ 2 + - 2 = - 1 + 1 \\ 0 = 0$
$(a - b) - c = a - (b - c) \\ ( - 1 - 3) - - 2 = - 1 - (3 - - 2) \\ - 4 + 2 = - 1 - 5 \\ - 2 = - 6$
under subtraction they are not equal
under addition they are equal