Expressions Review 6th Grade

Front

What is a coefficient in an expression?

Back

A coefficient is a numerical factor in a term of an expression. For example, in the expression 4m, 4 is the coefficient.

Front

What does the (E) in PEMDAS stand for?

Back

The (E) in PEMDAS stands for 'exponents', which indicates the order of operations in mathematics.

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. It is often remembered by the acronym PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

How do you write an expression for half as many students in the English class as in the math class?

Back

If 's' represents the number of students in the math class, the expression for the English class would be s ÷ 2.

Front

What is the result of (3 + 4)² - 32?

Back

The result is 17.

Front

What is an expression in mathematics?

Back

An expression is a combination of numbers, variables, and operators (such as +, -, ×, ÷) that represents a value.

Front

What is the difference between an expression and an equation?

Back

An expression does not have an equality sign and represents a value, while an equation states that two expressions are equal and includes an equality sign.

Front

What is the value of the expression 30 + (16/2)?

Back

The value of the expression is 38.

Front

What is the purpose of parentheses in mathematical expressions?

Back

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

Front

What is a variable in mathematics?

Back

A variable is a symbol (often a letter) that represents an unknown value in an expression or equation.