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.

Tags

CCSS.6.EE.A.2B

Front

What is a variable?

Back

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

Tags

CCSS.6.EE.A.2B

Front

What does it mean to evaluate an expression?

Back

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

Tags

CCSS.6.EE.A.2C

Front

What is the difference between an expression and an equation?

Back

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

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).

Tags

CCSS.7.NS.A.3

Front

What is the sum of two numbers?

Back

The sum is the result of adding two or more numbers together.

Tags

CCSS.1.OA.A.1

Front

What is the difference in subtraction?

Back

The difference is the result of subtracting one number from another.

Tags

CCSS.5.NBT.B.7

Front

What is the product in multiplication?

Back

The product is the result of multiplying two or more numbers together.

Tags

CCSS.3.OA.A.1

Front

What is the quotient in division?

Back

The quotient is the result of dividing one number by another.

Tags

CCSS.3.OA.A.2

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 eliminating unnecessary operations.

Tags

CCSS.7.EE.A.1