Decimal Operations
What is the first step to add/subtract decimals?
Line up the decimals
The least common multiple of 3 and 8 is
24
What is the Reciprocal of 8?
1/8
What is the opposite of 10?
-10
Equal or Not Equal?
-90/100 and -9/10
Equal
What is the difference between 4.091 and 2.174?
1.917
The prime factorization of 16
24
2/7 ÷ 4/5?
5/14
Ethan is hiking in a canyon. He is at an elevation that is below sea level. His elevation is within 200 feet of sea level. Which of the following could be Ethan’s elevation?
A. -300 feet B. -150 feet
C. 150 feet D. 300 feet
B
Which sign makes the statement true? <, >, =
3 3/4 3 1/4
>
8.1 ÷ 0.9 =
9
What is the GCF of 28 and 42?
A basket contains 9/10 pound of strawberries.
One serving of strawberries is 2/5 pound.
How many servings of strawberries are
in the basket?
2 1/4
In a hotel building, the lobby is located at sea-level. The first floor is located 18 feet above the lobby, and the basement is located 22 feet below the lobby. What is the distance from the lobby to the basement? Write your answer as an absolute value statement. (using bars) Which is a greater distance from the lobby: the first floor or the basement?
l -22 l; basement
On a number line from 0 to -10, where is −10/4 located?
A. Between 0 and -1
B. Between -1 and -2
C. Between -2 and -3
D. Between -3 and -4
C
Find the product of 44.6 and 2.34
104.364
Fill in the blanks to represent a product of the greatest common factor and the sum of two numbers.
56 + 92 = ____ ( ____+ ____ )
4(14+23)
8 ÷ 2 1/8?
3 13/17
Order the cities in the table from lowest elevation to
highest elevation. City Elevations:
New Orleans, LA -8 feet
Lakewood, FL 345 feet
Salton Trough, MX -69 feet
Badwater, CA -279 feet
The Fens, UK Sea Level
Badwater, Salton Trough, New Orleans, The Fens, Lakewood
A list of rational numbers is shown below. Order the numbers from least to greatest
3, -15/4, 0, -3 1/4, -4.5
-4.5, -15/4, -3¼, 0, 3
Alessandra wants to buy 3 DVDs that cost $13.98 each. She also wants to buy 4 CDs, each of which costs half as much as a DVD. Alessandra wants to know how much her purchases will total?
69.90
Kiara baked 30 oatmeal cookies and 48 chocolate cookies to package in plastic containers for her friends at school. She wants to divide the cookies into identical containers so that each container has the same number or each kind of cookie. What is the greatest number of containers she can make?
6
Nana’s recipe for pudding makes 6 1/2 cups. She serves the pudding equally among her four grandchildren. How many cups of pudding will each one get?
1 5/8
What is 6° colder than -3°?
-9°
Rebecca is practicing how to use a tape measure in math class. Today, she used a tape measure to find the distance around some different playground balls. This table shows the measurements she recorded. Type of ball Distance around (in.)
tetherball 27 5/12
basketball 27 1/2
dodgeball 27 1/3
volleyball 27 7/16
soccer ball 27 1/12
How many of the measurements are less than 27.25 inches?
2