Evaluating Algebraic Expressions (6th)

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 2x + 3 is an algebraic expression.

Tags

CCSS.6.EE.A.2B

Front

What does it mean to evaluate an algebraic expression?

Back

To evaluate an algebraic expression means to substitute the values of the variables into the expression and perform the operations to find a numerical result.

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression: a² - b² when a = 4 and b = 2.

Back

12

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression: 2x + x - 10 when x = 8.

Back

14

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression: 3x + 8 when x = 2.

Back

14

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression: b² + 4 when b = 3.

Back

13

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression: 7(6 + 3 - x) when x = 8.

Back

7

Tags

CCSS.6.EE.A.2C

Front

What is the value of x in the expression 5x + 3 = 18?

Back

x = 3.

Tags

CCSS.7.EE.B.4A

Front

What is a variable in an algebraic expression?

Back

A variable is a symbol, usually a letter, that represents an unknown value in an expression or equation. For example, in 3x + 2, x is the variable.

Tags

CCSS.6.EE.A.2B

Front

What is the order of operations used to evaluate expressions?

Back

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.

Tags

CCSS.6.EE.A.2C