Rational Numbers

By: Elizabeth Manning and Faith Byrum

Starring: Plus and Minus Sign

1).5

2)-5

3)5

4)-1/2

-----------------------------------------------

.5>-1/2

.5>-5

-5<5

-1/2<5

-1/2>-5

-5<.5

_____________________________

-5,-1/2,.5,5

-5. -1/2. .5. 5

t--t--t--t--t--t--t--t--O--t--t--t--t--t--t--t--t

_____________________________

1) |-5|+5=10

2) |-1/2|+.5 =1

3) |-1/2|+-5=51/2

4) |-5|+-1/2=41/2

______________________________

Explanation:the distance from zero is absolute value.

______________________________-

Addition:

1) -1/2 + (-5) = -5 1/2

2) .5+ (5) = 5 .5

Subtraction:

1) 5 - -5 = 0

2) -1/2 - .5 =0

Multiplication:

1) 5 x (.5) = 2.5

2) -1/2 x( -5) =2.5

Division:

1) (-1/2)/(-5)=2 1\2

2) .5/5=2.5

_______________________________

1) You take a 5 dollars from the bank.=-5

2) You pick up a five dollar bill up off the street.=5

3) You get change for a dollar and half of the change is 2 quarters=.5

_______________________________