Evaluating Expressions

Flashcard
•
Mathematics
•
7th - 10th Grade
•
Hard
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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
What does it mean to evaluate an expression?
Back
To evaluate an expression means to calculate its value by substituting the variables with given numbers and performing the operations.
3.
FLASHCARD QUESTION
Front
What is the order of operations in mathematics?
Back
The order of operations is a set of rules that dictates the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - often abbreviated as PEMDAS.
4.
FLASHCARD QUESTION
Front
Evaluate the expression: 2x + 5(y - 1) when x=8 and y=5.
Back
36
5.
FLASHCARD QUESTION
Front
Evaluate the expression: -7w² + 2w if w = -4.
Back
-120
6.
FLASHCARD QUESTION
Front
Evaluate the expression: 10c - cd + d³ if c = -6 and d = 2.
Back
-40
7.
FLASHCARD QUESTION
Front
Evaluate the expression: (18 - ab) + 4b if a = -2 and b = -5.
Back
-12
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