# SKILL 2a: Additive Inverse The sum of a number and its inverse is 0 ```SKILL 2a:
The sum of a number and its _________________
inverse is 0.
●
Inverse
For example: -5 + 5 = 0
-5 and 5 are additive inverses
​
This is a fancy way of saying:
_______________________________________
●
GLUE THIS SIDE ON IMN PG 8
Defining
Chip
Colors
Positive Integers​
: any number to the ______________
of zero on a number line. They are represented by
_______________________ chips.
Negative integers:​any number to the
______________ of zero on a number line. They are
represented by ______________________ chips.
●
Zero Pairs
When ​
1 positive and 1 negative​
is combined, the
result is _______. We call this a _________
___________.
***You only get zero pairs when ​
BOTH​
negatives and
positives are combined.
Having​
\$1 (+1) and ​
s pending​
\$1 (-1) leaves you with
\$0 (broke!)
5+1
-6 + (-2)
-2 + 5
3 + (-5)
Setting up
the Problem
Guided Practice Model with two different colors or with circles containing (+) or (-)
symbol.
Only (+)
1.
-3 + (-2)
2.
5+1
Only (-)
Both (+) and
(-)
3. -3 + 5
4. 2 + (-6)
5. -4 + 3
5. 5 + (-4)
```