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Important Concepts
Adding Integers
Subtracting Integers
Word Problems
Mixed Review
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
5 - -57
62
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
-22 + -22
-44
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
15 below sea level written as an integer
-15
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, Jason earned 15 points in the first round, in the 2nd round he lost 20 points for not showing sportsmanship. What is his final score?
15 + (-20) = -5 points
400
100 feet above sea level written as an integer
100
500
Subtracting a negative number is the same thing as...
Adding a positive
500
-16+18+-17
-15
500
-10 - 11 - (-3)
-10 + (-11) + (3)= -18
500
Nikki starts with $1000 in her bank account, she withdraws $750 to pay her rent. She lets a friend borrow $70, How much money is in her bank account?
$180
500
The track team ran 7 miles to the store, they then ran another 5 miles. How far did they run?
12 miles