Terms
The word "sum" refers to this mathematical operation.
3+5
What is 8?
-4+9
What is 5?
9-5
What is 4?
(-25) - 10
-35
What is subtraction?
-5+(-4)
-9
8+(-4)
4
-8-7
What is -15?
(-25)- (-10)
-15
When adding same signed integers, you should...
Sum (add) the numbers and keep the sign
-9+(-3)
-12
-6+2
-4
-12-(-4)
What is -8?
(-6) + 15 + (-5)
4
When adding different signed integers you should...
Take the difference (subtract) the two numbers and keep the sign of the larger number
33+44
77
8+(-24)
43-(-17)
What is 60?
9-(-1)-12
-2
When subtracting two integers you should...
Keep, Change, Change
-24+(-38)
What is -62?
-43+56
What is 13?
-85-67
(-23)-62 +50
-35