Show:
Adding Integers
Subtracting Integers
Multiplying Integers
Dividing Intgers
Identifying and ordering rational numbers
100
(-111)+111=?
0
100
What is (-6)-6?
-12
100
56 times (-8)
-448
100
600 divided by(-120)
-5
100
Is this number rational? 2.94567
yes
200
24+(9+(-25) )=?
8
200
What is (-3)-(-9)?
6
200
48 times 3
144
200
51 divided by 3
17
200
Is this number rational? 1.178018493........
no
300
What is (-156)+(-1234)?
(-1390)
300
What is 1738-(-56)?
1794
300
432 times (-7)
-2224
300
96 divided by (-16)
6
300
what is a rational number that is not an Integer?
any decimal that terminates
400
What is (-138)+1876?
1738
400
What is the opposite of (-1118)-(-368)?
750
400
55 times 124
6820
400
138 divided by 3
46
400
what is an Integer that is not a whole number?
0
500
what are the rules for adding integers?
positive + positive= positive negative + negative= negative smaller negative + bigger positive= positive bigger negative + smaller positive=negative positive + opposite= zero negative + opposite=zero
500
What are the rules for subtracting integers?
Bigger negative - smaller negative= negative negative - same negative= zero smaller positive - bigger positive=negative positive - same positive= zero bigger positive - smaller positive=positive smaller negative - bigger negative= positive
500
what are the rules for multiplying integers?
positive times negative= negative positive times positive=positive negative times negative=positive any number times zero=zero
500
what are the rules for dividing integers?
positive divided by positive= positive positive divided by negative= negative negative divided by negative=positive any number divided by zero= undefined
500
How do you tell if a number is rational?
If it can be expressed as a fraction, then it is rational.