Respuesta :
Associative Property of Addition
(1+10) + 18 = 1 + (10 + 18)
11 + 18 = 1 + 28
29 = 29
(1+10) + 18 = 1 + (10 + 18)
11 + 18 = 1 + 28
29 = 29
(1 + 10) + 18 = 11 + 18 = 29 and
1 + (10 + 18) = 1 + 28 = 29