Adding Integers Rules
Integer Rules: If the integers have the same signs...
Add, keep the same sign
or
Subtract, keep the sign of the bigger number (absolute value)
Add, keep the same sign
-2 + -3 =
-5
-2 + 3 =
1
-5 + -5 =
-10
Integer Rules: If the integers have different signs...
Add, keep the same sign
or
Subtract, keep the sign of the bigger number (absolute value)
Subtract, keep the sign of the bigger number
-5 + -3 =
-8
5 + -3 =
2
-5 + 5 =
0
Would you add or subtract these integers?
-8 + 5
Subtract
4 + 6
10
4 + -6
-2
-10 + -13 =
-26
Would you add or subtract these integers?
20+(-4)=
Subtract
-12 + -15 =
-27
-12 + 15 =
3
-14 + 8 =
-6
Would you add or subtract these integers?
-35 + (-9)
Add
48 + 22 =
70
-48 + 22 =
-26
-50 + 30 =
-20