Respuesta :

ruhibreddy
1) -149, -1; -148, -2; -147, -3
2) No, according to the commutative property of addition, it does not matter the order they are put in.

Hope this helps!
bmc190529
1: -120 + -30
-40 + -110
-50 + -100

2: no the order does not matter because of the commutative property that says you can add in any order and it can be the same