What does it mean for two expressions to be equivalent?

Two expressions are equivalent if they have the same value for all values of the variables.

What is the difference between an equation and an expression?

An equation states that two expressions are equal, while an expression does not include an equality sign.

What is the purpose of using parentheses in mathematical expressions?

Parentheses indicate which operations should be performed first in an expression.

What is the order of operations in mathematics?

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - often abbreviated as PEMDAS.

How do you simplify the expression $$3(m + 4)$$ ?

Distribute to get $$3m + 12$$ .

What is the result of $$5 + 3 \times 2$$ using the order of operations?

$$11$$ (because you multiply first, then add).

What is a variable in mathematics?

A variable is a symbol (often a letter) that represents an unknown value.

What does it mean to evaluate an expression?

To evaluate an expression means to calculate its value by substituting the variables with specific numbers.

What is the difference between a coefficient and a constant in an expression?

A coefficient is a number that multiplies a variable, while a constant is a fixed value that does not change.

24-25 Pre-Alg 1 Flashcard #5 Practice: 16 Cards (6th Grade)

Student preview

16 questions

Show all answers

1.

FLASHCARD QUESTION

Front

How many terms are there in the expression $24m + 12n - 14 + 2t$ ?

Back

4 terms

2.

FLASHCARD QUESTION

Front

If you do homework for m minutes and watch TV for 30 minutes each day, what expression represents the total time spent on both activities in 5 days?

Back

$5(m + 30)$

3.

FLASHCARD QUESTION

Front

What is the equivalent expression for $\frac{5}{6}$ ?

Back

$5 \div 6$

4.

FLASHCARD QUESTION

Front

What operation would you use to find the difference between the shortest average wingspan of an eagle (5 9/10 feet) and the longest (7 1/2 feet)?

Back

Subtraction

5.

FLASHCARD QUESTION

Front

What is the equivalent expression for $12 \div 17$ ?

Back

$\frac{12}{17}$

6.

FLASHCARD QUESTION

Front

Define a term in mathematics.

Back

A term is a single mathematical expression that can be a number, variable, or the product of numbers and variables.

7.

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.

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