Any numbers to the right of zero on the number line
100
What direction do move on the number line when adding?
You move to the right.
100
What direction do move on the number line when subtracting?
You move to the left.
100
What is multiplication?
Multiplication is repeated addition.
100
What is division?
Division splits numbers into equal groups.
200
What is a rational number?
A number that can be written in m/n form.
200
What is the sum of -6 and 6?
0
200
What is 20 - 30?
- 10
200
What is 7 • (-9)?
-63
200
What is 121 ÷ 11?
11
300
Give an example of an irrational number.
pi, the golden ratio, the square root of 2...etc.
300
What is the sum of -7 and -9?
- 16
300
Florence has only $420 in her bank account. Describe what happens to her bank account after she writes a check for $590?
Not including overdraft fees, her account will be - 170.
300
What is -8 • -5?
40
300
What is -121 ÷ -11
11
400
What is an irrational number?
A number that cannot be written in m/n form. In decimal form it goes on forever and never repeats.
400
A diver went 24 feet below the surface of the ocean, and then 47 feet farther down. What is the diver's new position relative to the surface?
-71 feet
400
A submarine was at 1,200 feet below sea level. It then moved to 1,683 feet below sea level. How many feet did the submarine descend?
483 feet
400
A scuba diver took 6 minutes to rides to the surface at a rate of 30 feet per minute. How far was he below the surface?
180 feet below sea level
400
An elevator descends 1,500 feet in 60 seconds. Find the change in height per second.
-25 ft/s
500
What is absolute value? What is |-99|?
The distance from zero. 99
500
What is -45 + 53 - 9 + 3 ?
2
500
You and a friend are playing a video game. Your score is 340 points and your friend's score is -220 points. What is the difference between your scores?
560 points
500
While returning to the glider port, Laura descended at a rate of 380 feet per minute for 3 minutes. Calculate her change in altitude.