Using the Number Line
Just Adding
Subtraction
Signs, Signs, Everywhere there is Signs
Opposites
100
What is the equation?
3 + 4 = 7
100
3 + 2 =
5
100
4 -3 =
1
100
(+) + (+) =
+
100
What is the opposite integer to 9?
-9
200
What is the Equation?
5 - 3 = 2
200
-3 + 2 =
-1
200
-4 - 3 =
-7
200
(+) + (-) =
+/- or 0
200
If you add and integer and its opposite integer together the result will always be?
0
300
What is the equation?
-9 + 3 = -6
300
4 + (-2) =
2
300
-4 - (-3) =
-1
300
(-) + (-) =
-
300
Which integer does not have an opposite integer?
0
400
What is the addition equations?
3 + (-4) = (-1)
400
-4 + (-3) =
-7
400
45 - (-5) =
50
400
(+) - (-) =
+
400
Finish the equation 49 + ___ = 0
-49
500
What is the subtraction equation?
2 - (-3) = 5
500
-29 + 21 =
-8
500
-45 - (-5) =
-40
500
(-) - (-) =
+/- or 0
500
Another word for opposite integer is?
Additive inverse