Vocabulary
Evaluating Expressions A
Evaluating Expressions B
Word Problems
Miscellaneous
100
A symbol for an unknown number. Something that can change.
What is a variable?
100
Evaluate 3x when x=4
What is 12?
100
Evaluate 3 + x + y when x=4, y=-2
What is 5?
100
A car washer charges $30 to wash an SUV and $15 to wash a small car. Write an expression to represent how much the car washer earns for washing x SUVs and y small cars.
What is 30x + 15y?
100
The parts of an expression that are separated by addition and subtraction signs.
What are terms?
200
When a variable is replaced by a number.
What is to substitute?
200
Evaluate -8 ÷ y when y=4
What is -2?
200
Evaluate 5w + 3z when w=4 and z=-1
What is 17?
200
You earn $9 an hour to babysit your next door neighbor. Write an expression to show how much money you would earn in one night.
What is 9h when h=# hours babysitting?
200
Any number that can be written as a fraction.
What is a rational number?
300
A math phrase that must contain at least one variable and an operation. It may or may not contain numbers as well.
What is an algebraic expression?
300
Evaluate 13 + w when w=-3
What is 10?
300
Evaluate x(y - 1) when x=-6 and y=-8
What is 54?
300
The math department splits all of its 800 calculators equally among the teams at HMS. However, the number of teams changes each year depending on the amount of students in school. Write an expression to show how many calculators each team at HMS will get.
What is 800 ÷ n, where n=# of teams?
300
Evaluate the expression 7(x - 4) ÷ 2 when x=24
What is 70?
400
To change the form of a number or to change the units.
What is to convert?
400
Evaluate 6m + 1 when m=5
What is 31?
400
Evaluate 5 + k • (r ÷ 3) - 8 when k=-9 and r=9
What is -30?
400
An amusement park charges $30 for children, $50 for adults, and $25 for senior citizens. Write an expression to represent the total cost of admission for any number of people.
What is 30c + 50a + 25s, where c=# children, a=# adults, and s=# senior citizens?
400
Evaluate the expression 12x - (4y + 7z) when x=9, y=4, and z=2.
What is 78?
500
To make an expression shorter, smaller, or easier to work with.
What is to simplify?
500
Evaluate 2(x + 7) when x=3
What is 20?
500
Evaluate xy - 40 ÷ 4 + (3 - x) when x=6 and y=-2
What is -25?
500
At the same amusement park ($30 for children, $50 for adults, $25 for senior citizens), a family with 3 children, 2 adults, and one grandparent comes for the day. Write and evaluate an expression to represent how much the family will have to pay.
What is 30(3) + 50(2) + 25(1) = 90+100+25 = $215?
500
A storage company uses boxes that have the same length, width, and height. Write and simplify an expression to show how much a box with side lengths that measure 5 ft can hold.
What is x•x•x when x=length of a side. What is 5•5•5=125 cubic feet when x=5 ft.
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