100
18 + (-9)
What is positive?
100
-3 + (-12)
What is -15?
100
-54 + (-48)
What is -102?
200
-300 + (-100)
What is negative?
200
120 + (-78)
What is 42?
200
-10 - (-10)
What is 0?
200
-21 - 19
What is -40?
300
25 + (-75)
What is negative?
300
-500 + 150
What is -350?
300
19 - (-16)
What is 35?
400
15 - (-20)
What is positive?
400
-34 + (-34)
What is -68?
400
-425 + (-240)
What is -665?
400
-35 - 10
What is -45?
400
-50 - (-49)
What is -1?