Absolute Value
What are the rules for Adding Integers?
Same Signs? Different Signs?
Same Signs Add and Keep the Sign
Different Signs Subtract and Keep the Sign of the number with the greatest absolute value
What are the rules for Multiplying/Dividing Integers?
Same Signs?
Different Signs?
Same Signs Positive
Different Signs Negative
1/8 + -7/8
-6/8
-3+-11
-14
(-5)(4) =
(-6)(-3) =
-20 and 18
Solve:
3/11 - 8/11
-5/11
What is the absolute value of -5?
What is the absolute value of 0.25?
5 and 0.25
2 - 7=
-5
-2 * 2 * -4 =
16
A dolphin was swimming 7 meters below the surface of the ocean. It dove down 4 more meters to eat a squid. What is the location of the dolphin now relative to the surface?
-11 meters
Which symbol makes the statement true? <, >, or =
|-6| ____ |-3|
greater than; >
(-4 + 7) + 4 =
7
In South Windsor, the temperature dropped 2 degrees every hour. What was the temperature after 8 hours?
(-2)(8) = -16 degrees
-2.85 - (-1.62)
-1.23
The temperature was 6 degrees in the morning, it went up 15 degrees in the afternoon, and then fell 26 degrees over night. What is the new temperature?
6+15+-26=
-5 degrees
Which symbol makes the statement true? <, >, or =
|-2| ___ 2
equal to; =
-3 + 5 - (- 8) + -1 =
9
Shrihan's bank account started with a balance of $50. He withdraws $8 each week for 7 weeks.
How much money is in his bank account?
(-8)(7) = -56
50-56 = -6
-$6.00
(3/5) * (-1/4) * (-2/3)
6/60 = 1/10
Shrihan's bank account started with a balance of $24. He withdraws $6 each week for 6 weeks. Then he asks his two sisters to help him get out of debt.
How much money does each sister have to give Shrihan to help him have a bank account of $0?
(-6)(6) = 36 ---> 24-36 = -12
-12 divided by 2 = $6.00