CSA Review 13.5
Flashcard
•
Mathematics
•
7th - 8th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the distributive property in mathematics?
Back
The distributive property states that a(b + c) = ab + ac. It allows you to multiply a single term by two or more terms inside a set of parentheses.
2.
FLASHCARD QUESTION
Front
How do you simplify the expression 2x + 7(x - 5) - 4?
Back
Combine like terms: 2x + 7x - 35 - 4 = 9x - 39.
3.
FLASHCARD QUESTION
Front
What is a variable in algebra?
Back
A variable is a symbol, often a letter, that represents one or more numbers. For example, in the expression 2x + 3, 'x' is a variable.
4.
FLASHCARD QUESTION
Front
What does it mean to combine like terms?
Back
Combining like terms involves adding or subtracting terms that have the same variable raised to the same power. For example, 3x + 4x = 7x.
5.
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.
6.
FLASHCARD QUESTION
Front
What is the difference between an equation and an expression?
Back
An equation states that two expressions are equal, using an '=' sign, while an expression does not include an '=' sign.
7.
FLASHCARD QUESTION
Front
What is the order of operations in mathematics?
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). Often remembered as PEMDAS.
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