5th Grade Expressions Review

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 does it mean to evaluate an expression?

Back

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

Tags

CCSS.6.EE.A.2C

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). This is often remembered by the acronym PEMDAS.

Tags

CCSS.7.NS.A.3

Front

What is a numerical expression?

Back

A numerical expression is a mathematical phrase that includes numbers and operation symbols but does not include variables.

Tags

CCSS.6.EE.A.1

Front

How do you write an expression for 'Add 36 and 20, multiply the sum by one-fourth, then subtract 10'?

Back

Tags

CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

Back

The value is 36.

Tags

CCSS.7.NS.A.3

Front

What does it mean for two expressions to be equal?

Back

Two expressions are equal if they have the same value when evaluated.

Tags

CCSS.6.EE.A.4

Front

What is a variable in an expression?

Back

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

Tags

CCSS.6.EE.A.2B

Front

What is the difference between an equation and an expression?

Back

An equation is a mathematical statement that asserts the equality of two expressions, while an expression is a combination of numbers and variables without an equality sign.

Front

Back

Tags

CCSS.7.EE.B.4A