Evaluating Expressions
Flashcard
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an expression in mathematics?
Back
An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.
2.
FLASHCARD QUESTION
Front
Evaluate the expression 30 + r² for r = 3.
Back
39
3.
FLASHCARD QUESTION
Front
What does it mean to evaluate an expression?
Back
To evaluate an expression means to calculate its value by substituting the variables with numbers.
4.
FLASHCARD QUESTION
Front
Evaluate m - n if m = 29 and n = 11.
Back
18
5.
FLASHCARD QUESTION
Front
What is the result of dividing a number by zero?
Back
Undefined
6.
FLASHCARD QUESTION
Front
Evaluate the expression 3x + 8 if x = 2.
Back
14
7.
FLASHCARD QUESTION
Front
What does the term 'variable' mean in mathematics?
Back
A variable is a symbol (often a letter) that represents an unknown value.
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