Adding Integers
8+(-15)=
-7
9-(-5)=
14
-12(11) =
-132
250/(-50)=
-5
What does |a| tell you?
"the distance a is from zero"
-9+21+(-3)=
9
-7-4-10=
-21
-8(-4)(-1)=
-32
(-56)/(-8)=
|17|=
17
14+(-9)+(-20)=
-15
Explain how to change the problem to addition and solve for the solution: -7-10=
Change the minus to addition and make 10 the opposite (-10).
-7+(-10) = -17
-15(-4)(-2)=
-120
-120/40
-3
|-1000|=
1000
What is the sign of the sum of a positive number and a negative number?
Depends on the sign of the larger number.
Explain how to change to addition and solve for the solution: 12-(-19) =
Change the minus sign to addition and make -19 the opposite (19).
12+(+19) = 31
The product of a negative and a positive number is......
"negative"
[(10)(-2)] / 5
-4
-|-9|=
-9
The water level in a large tank rises 5 feet, falls 9 feet, and then rises 3 feet. Overall how far does the water level rise or fall?
5+(-9)+3 = -1 feet
water falls 1 foot
Complete the statement: Subtraction is the ....
"addition of the opposite"
A helicopter's altitude is changing at a rate of -17 feet per second. Find the change in altitude of the helicopter after 4 seconds.
-17(4) = -68 feet
A submarine descends 720 feet in 6 minutes. Find the submarines change in height per minute.
-720/6 = -120 ft/min
-2|2-10|=
-16