Show:
Subtracting integers
Adding integers same sign
Adding integers different signs
100
What is 1-(-6)
7
100
What is 15+12
27
100
Want is 2+(-5)
-3
200
What is 7-(-3)
10
200
What is -10+(-30)
-40
200
What is 10+(-23)
-13
300
What is -10-18
-28
300
What is 30+50
80
300
What is 20+(-20)+10
10
400
What is 20-(-30)
50
400
3+12+23
38
400
What is -30+45+23
38
500
What is 30-15-(-12)
27
500
Want is -40+(-12)+(-25)
-77
500
What is 50+(-32)+10
28