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Expressions
Expressions
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Writing expressions
Flashcards
12 cards
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Questions
12
Answers
1
Write an expression for the following: Seven less than three times a number.
3n
n = 7 + 3y
7 = 3 + n
n = 3y - 7
2
What is a dependent variable?
The variable that gives the most information.
The variable that can stand alone.
The x coordinate
The variable that's value depends upon the other variable
3
Juan had 14 apples and gave away 5. Which equation give the # of apples left?
a = 14n
a = 14 x 5
a = 14 - 5
a = 14 + 5
4
Write an expression for the following: Fifteen divided by a number.
x = 15 - 3
30 = 15x
y = 15/x
y = 15 + x
5
What is a variable?
A pizza
The answer
An equation used to solve a problem.
A quantity that can change, often in the form of a letter.
6
It costs $7.25 per student to go on a field trip. Write an expression to show the cost.
c = 7.25
c = 7.25 - n
c = 7.25n
c = 7.25 + n
7
What is an Equivalent Expression?
Expressions that represent the same quantity.
Expressions that are not the same.
Expressions that show division.
Expressions that tell a story.
8
Write an expression for the following: The product of 7 and a number.
y = 7n
y = n + 7
7 = n
y = 7 - n
9
What is an EXPRESSION?
A phrase with numbers, variables, and operation symbols.
A rule to represent a mathematical relationship.
A smiley face
A sentence describing math vocabulary.
10
What is one way to prove expressions are equivalent?
Solve using the letter variables.
Write the expressions using different operations.
Use a number in place of the variable to solve.
Guess
11
What does it mean to define a variable?
A value that changes.
Use a number to replace the variable.
Give a letter to the missing part of the equation.
Write the definition.
12
What is a term?
The answer to a subtraction problem.
A number, variable, or product of a number and a variable
A number
The amount of time spend doing something.
