Real Number System
Is the square root of 25 a rational or irrational number?
Rational
What is the greatest common factor (GCF) of 12 and 18?
6
What is the abs(-129)?
129
Simplify the fraction: 12/28
3/7
Write an expression for "5 is less than n"
n-5
True or False: All integers are whole numbers
False
What is the least common multiple (LCM) of 4 and 15?
60
Simplify: abs(-7)+(-3)
4
Evaluate the expression: (3/7+4/14)+1/2
17/14=1 3/14
The perimeter of a square is 36 inches. What is the length of one side? (Must include labels for the points)
9 inches
Classify -3.75 as a rational, irrational, integer, or whole number.
Rational
True or False: 253 is a prime number
False (11 x 23 = 253)
Subtract: -8-(-5)
-3
Evaluate AND simplify: (1/2+3/4) * (3/8+3/5)
195/160=39/32=1 7/32
Solve for x: 3x-7=11
x=6
Which is larger: pi or 3.14?
pi
A school bell rings every 18 minutes and a bus leaves the school every 24 minutes. If both a school bell rings and a bus leaves at 9:00 AM, when is the next time the bell will ring and a bus will leave at the same time?
10:12 AM (LCM = 72)
A submarine is 350 ft. below sea level. It rises 125 feet. What is the submarines new position?
-225 ft (feet below sea level)
Divide: 3/4 div 2/5
15/8= 1 7/8
The area of a rectangle is 50 square units. If the length of the rectangle is 1 3/7 units, what is the width?
35 units
Write the following numbers in order from least to greatest: 0, -12, 2/3 , sqrt(2) , .31938513048029, 5
-12, 0, .31938513048029, 2/3 , sqrt(2) , 5
Find the LCM and the GCF of the following numbers: 25, 13, 8.5
LCM: 5525
GCF: 1
Evaluate the expression: abs(-15)-(8-20)+abs((6-10)+4)
27
A runner for the track team did 15-100 meter jogs around the school track. How many total laps did he go around the track if he started from where the previous 100 meter jog ended? (1 lap = 400 meters)
3 3/4 laps around the track
A store is having a 25% off sale. The normal cost of a jacket is $64. After the discount is applied, there is a 7% sales tax applied. What is the total cost of the jacket?
$51.36