Adding
Find the sum. -66+42
-24
Subtract. -6 - (-4)
-2
-7 * 12
-84
What is the decimal equivalent the rational number -60/22
-2.72 repeating
The temperature was 8 degrees F. It dropped so that the temperature was 0 degrees F. What was the change in temperature?
-8 degrees
12/13 + (-1/13)
11/13
Find the difference. -72 - (-151)
79
(5) * (-9) * (-2)
90
Find each quotient. -25/5
-5
It was 12 degrees C when Preston got home from school. The weather report shows a storm front moving in that will drop the temperature by 17 degrees C. What is the expected temperature?
-5 degrees C
-50 1/2 + (-12.3)
-62.8
-0.35 - (-0.25)
-0.10
-5.3 * (-2.6)
13.78
Find the quotient. -18/3
-6
A scuba diver descends 63 feet in 18 seconds. What integers represents the change in the diver's position in feet per second?
3.5 feet per second
When Tom simplified the expression -2.6 + (-5.4), he got 2.8. What mistake did Tom likely make?
He subtracted instead of adding. Both numbers are negative, therefore the answer is -8
DAILY DOUBLE!
What is the value of the expression -13.2-(-8.1)?
-5.1
-1 5/6 * 6 1/2
-143/12
-0.5 / (-3/13)
13/6
An elevator descends 36 feet in 3 seconds. What integer represents the elevator's change in elevation in feet per a second?
-12 feet per second.
A plastic toy submarine is held 15 centimeters below the water surface in a bath tub. The submarine is let go and rises 15 centimeters. What integer represents the toy submarine's position with respect to the surface of the water?
0 (surface level)
The temperature in the late afternoon was -7.5 degrees C. It dropped 5 degrees by early evening and then dropped another 8.5 degrees by midnight. What was the temperature at midnight?
-21 degrees C
Ming incorrectly says that this product is 4/63.
-(-4/9) * (-1/7)
a. what is the correct product?
b. what error could Ming have made?
a. -4/63
b. Ming forgot about the negative sign on the outside (three negatives make the answer negative)
Simplify the complex fraction.
-3/5 / 2 1/4
DAILY DOUBLE!
A scuba diver is swimming at a depth of -46 feet, and then swims 0.5 foot toward the surface every 3 seconds. What is the location of the scuba diver, relative to the surface, after 15 seconds.
-43.5 feet