Important Concepts
Adding Integers
Subtracting Integers
Word Problems
Mixed Review
100

Define 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 feet or 7 feet below sea level

100

What is 72?

72 = 7 x 7 = 49

200

Define 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

Evaluate:

4 •  7 - 62 ÷  3

4 •  7 - 62 ÷  3 = 16

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 on Monday is -16 degrees. The temperature on Wednesday is 30 degrees. What is the difference in temperature for the two days?

30 - (-16) = 46 degrees

300

Order the integers from greatest to least:

-43, -56, -3, -10, |-48|, 90

Greatest to Least:

90, 48, -3, -10, -43, -56

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, Jareek earned 15 points in the first round, in the 2nd round he lost 20 points for not showing sportmanship. What is his final score?

15 + (-20) = -5 points

400

Evaluate:

82 ÷ (7 - 3)2 • 3

82 ÷ (7 - 3)2 • 3 = 12

500
Subtracting a positive number is the same thing as...
Adding a negative 7-4 = 7 +-4
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, and deposits it. How much money is in her bank account?

$160

500

Order from least to greatest:

|-13|, 62, -5, -25, opposite of 17

|-13|, 62, -5, -25, opposite of 17


-25, -17, -5, 13, 36

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