No, this is not correct!
-40 + (-70) =
We have to add them and put the sign of the greatest number.
Since the signs are the same the answer is -110.
40+-30=10
positive 10
36 plus 40 plus negative 2 is equal to 74.
2+40+30=72
-40 + 70 = 30
-30-10 is equal to -40
40 + 57 + 40 + 30 + 47 + 31 + 60 + 38 + 64 + 30 + 120 = 557
60 + 60 + 60 + 50 + 50 + 40 + 30 = 350
70 pounds!
50 + 40 + 40 + 40 + 30 + 30 + 20 + 10 = 260
286
-16 + - 40 = -(16 + 40) = -56