Adding: Chips
Show your work using chips.
-2+-1=
-3
5+2=
7
1+3=
4
l 2 l
2
1 and -1 are what?
Opposites, or Inverses!
-5+2=
-3
-10+3=
-7
-5+-8
-13
l-3 l
3
Negative numbers are to the ___________ of zero.
Left
-7+-10
-17
-12+-2
-14
7+-7
0
l-4l
4
If you are adding two numbers with different signs what do you do?
You subtract the absolute values and the number with the largest absolute value determines the sign of the answer.
20+15
35
-11+7
-4
19+-4
15
l 2 l ____ l -7 l
<, >, or =
l 2 l _<_ l -7 l
What is the definition of absolute value?
The distance a number is away from zero on a number line.
-17+16
-1
-6+12
6
-20+7
-13
l 15 l ____ l -9 l
<,>, or =
l 15 l _>_ l -9 l
Can absolute value be negative? Why or why not?
No because it's the number's distance from zero on a number line and distance can't have a negative value.