Addition
-20 + -10
-30
(-3) - (-5)
2
is the solution for x positive or negative?
-2 * x = 6.1
Negative
15 / -3
-5
x + 10 = 25.5
x = 15.5
20 + (-15.5)
4.5
-15 - 16
-31
-3.1 * 5
-15.5
I'm running a race that's 100 feet long, I finished it in 15 minutes. What was my speed during the race in feet per minute?
6.66 ft/min
5 * b = 35
b = 7
Write an expression to represent this situation: “On
Tuesday at lunchtime, it was 29C. By sunset, the temperature had dropped to 16C.”
29 + (-13) = 16
Which other expression has the same value as
-14 - (-8) ?
-14 + 8
8 + (-14)
8 - 14
5 * -10
Is the answer positive or negative?
Negative
Elena runs for 12.5 seconds and finishes at 250 meters. What is her velocity?
20 meters per second
x / 2 = 24
x = 48
Clare has $125 in her bank account. She buys a bike for $200. What is Clare's account balance now?
Write the equation using addition and solve.
125 + (-200) = -$75
How would you write the equation so its true?
17 ___ -20 = 37
17 - (-20) = 37
Jordan is running at a rate of 10 m/s, he finished the race in 15 seconds. What was the distance of the race?
150 m
A submarine is descending to examine the seafloor 2,100 feet below the surface. A submarine’s descent can be represented as y=-240x , where y is the elevation and x is time in hours. How long will it take this submarine to make the descent?
8.75 hours
3x - 4 = 20
x = 8
True or False
(-3.7)+(-4.1) is positive.
False
What is the change in elevation from 8,500 m to 3,400 m? why?
-5,100 m because we're going down
(-2) * (-30) * (3) =?
180
We're keeping track on how long J'Davia can Jerk. She spent 5 minutes practicing and counted her movements. She Jerked, 20 times. What is J'Davia's rate of jerking?
4 jerks per minute
2(x + 3) = 10
x = 2