Integer Rules
What is the rule when adding integers with the SAME sign?
Keep It and Add!
-12 + (9) =
(-3)
9 - (-20)=
29
(-6) x (-4)
24
48 ÷ 6
8
What is the rule when adding integers with DIFFERENT signs?
Subtract and Go Big!
-37 + (-13) =
(-50)
-97 - (-82) =
-15
8 x (-4)
-32
27 ÷ (-3)
-9
What is the rule when subtracting integers?
Keep, Change, Change!
(-8) + 15=
7
15 - 38
-23
(-12) x (-5)=
60
(-20) ÷ 4 =
-5
What is the rule when multiplying or dividing integers with the SAME sign?
The answer is always positive!
25 + (-27) =
-2
32 - (-14) =
46
10 x (-35) =
-350
100 ÷ (-2) =
-50
What is the rule when multiplying or dividing integers with DIFFERENT signs?
The answer is always negative!
(-15) + 15 =
0
-49 - 22 =
-71
(-18) x (-3)
54
(-132) ÷ (-11) =
12