Expressions and Equations
Flashcard
•
Mathematics
•
5th Grade
•
Practice Problem
•
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 (like +, -, ×, ÷) that represents a value.
2.
FLASHCARD QUESTION
Front
What is an equation?
Back
An equation is a mathematical statement that asserts the equality of two expressions, typically containing an equal sign (=).
3.
FLASHCARD QUESTION
Front
What does it mean to simplify an expression?
Back
To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.
4.
FLASHCARD QUESTION
Front
What is the order of operations?
Back
The order of operations is a set of rules that determines the sequence in which calculations are performed: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right). This is often remembered by the acronym PEMDAS.
5.
FLASHCARD QUESTION
Front
What is a variable?
Back
A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.
6.
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 and performing the operations.
7.
FLASHCARD QUESTION
Front
What is a coefficient?
Back
A coefficient is a numerical factor in a term of an expression, usually placed in front of a variable (e.g., in 3x, 3 is the coefficient).
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