Important Concepts
Adding Integers
Subtracting Integers
Word Problems
Mixed Review
100
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

7/8 written as a decimal

0.875

200
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

15/4 as a decimal

3.75

300
What are additive inverses
Numbers that are opposite and have a sum of zero
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

What is the absolute value of [-400]

400
400
What does this mean? |-6| = 6
The absolute value of -6 is 6, or -6 is 6 units from zero.
400

How do you find the sum of numbers with different signs

Subtract and take the sign of the # with the greater absolute value

400
-27 - (-3)
-27 + 3 = -24
400

In a game, Jack 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 35 points. What is his final score?

15 + (-20) + 35 = 30 points

400

How do we label a repeating decimal?

Put a line over the repeating numbers

500
Subtracting a positive number is the same thing as...
Adding a negative 7-4 = 7 +-4
500

-16+20+-17

-13

500
-10 - 11 - (-3)
-10 + (-11) + (3)= -18
500

John starts with $1000 in his bank account, he withdraws $600 to pay rent. He lets a friend borrow $90, and buys new clothes for $100. He finds $50 cash on the street, and deposits half of it. How much money is in her bank account?

$235

500

Marcus traveled 5 floors up in his apartment complex to visit his friend. He then went back down 3 floors to his apartment. Write this as an equation

5 + (-3)

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