6th Grade Expressions

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 does it mean to evaluate an expression?

Back

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

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). This is often remembered by the acronym PEMDAS.

Front

What is a factor in mathematics?

Back

A factor is a number that divides another number without leaving a remainder. For example, 2 and 3 are factors of 6.

Front

What is the greatest common factor (GCF)?

Back

The greatest common factor is the largest number that divides two or more numbers without leaving a remainder. For example, the GCF of 20 and 36 is 4.

Front

What is a power in mathematics?

Back

A power is a way to express repeated multiplication of a number by itself. For example, 5^4 means 5 multiplied by itself 4 times (5 x 5 x 5 x 5).

Front

How do you factor the expression 24 + 18?

Back

You can factor it as 6(4 + 3).

Front

What is the value of the expression 4h + 2g + 4 when g = 3 and h = 9?

Back

The value is 46.

Front

What is the difference between a term and an expression?

Back

A term is a single mathematical entity (like a number or variable), while an expression is a combination of terms.

Front

What does it mean to factor an expression completely?

Back

To factor an expression completely means to break it down into its simplest factors that cannot be factored further.