Add:

–7 + –6 + 1 + 3 =

-7 + -6 + 1 + 3 = -9

Add: 0 + –51 + 19 + –41 + 17 =

0 + -51 + 19 + -41 + 17 = -56

Add:

–30 + –17 + –78 + 0 =

-30 + -17 + -78 + 0 = -125

Add: –19 + 1 + 63 =

-19 + 1 + 63 = 45

Add: 1 + –13 + 14 =

1 + -13 + 14 = 2

Add: 18 + –11 + –5 + 5 =