Important Concepts
Adding Integers
Subtracting Integers
Word Problems
Variables
100

What is Absolute Value?

The distance of a number from zero

100
-5 + 9
4
100
-4 - 6
-4 + (-6) = -10
100
Jason dives 10 feet under water and swims back up 3 feet. Where is his current location in the water?
-10 + 3= -7
100

x + (-6) = -25

x = -19

200

What is an Integer?

Positive and negative whole numbers and 0

200
-12 + 5
-7
200
4 - 11
4 + (-11) = -7
200
Chris gets paid $100, and then must pay his cable bill which is $245. How much money does he have?
100 - 245 = $-145
200

x + (-6) = 12

x = 18

300

What is the opposite of 8? 

-8

300
-16 + (-17)
-33
300
15 - (-7)
15 + 7 = 22
300
The temperature is now 76 degrees, it rose 12 degrees overnight. What temperature was it last night?
76-12 = 64 degrees
300

25 + (-x) = 27

x=-2

400

What does this mean? |-6| 

The absolute value of -6 is 6

400

-16 - 5 - (-21) 

0

400
-27 - (-3)
-27 + 3 = -24
400
In a game, Jareek earned 15 points in the first round, in the 2nd round he lost 20 points for not showing sportmanship. In the final round he scored double what he did in the first round. What is his final score?
15 + (-20) + 30 = 25 points
400

-x - (-7) = - 2

X=9

500
Compare the absolute value of -6 and 0, using <,>,or =.

-6>0

500
-16+18+-17
-15
500
-10 - 11 - (-3)
-10 + (-11) + (3)= -18
500

Nikkia starts with $1000 in her bank account, she withdraws $750 to pay her rent. She lets a friend borrow $70, buys new clothes for $120. She finds $100 cash on the street, but she only deposits 1/4 of it. How much money is in her bank account?

$85

500

a - a + 8 + ( - a) = 10

a = -2

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