Algebraic Expressions

Front

What is an algebraic expression?

Back

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

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 given numbers.

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression x^2 + 2x + 3 when x = 4.

Back

27

Tags

CCSS.6.EE.A.2C

Front

What is the formula for the difference of squares?

Back

The difference of squares formula is a^2 - b^2 = (a - b)(a + b).

Tags

CCSS.HSA.APR.C.4

Front

Evaluate a^2 - b^2 when a = 4 and b = 2.

Back

12

Tags

CCSS.6.EE.A.2C

Front

What is a variable in an algebraic expression?

Back

A variable is a symbol, usually a letter, that represents an unknown number. For example, in 5p + 4h, p and h are variables.

Tags

CCSS.6.EE.A.2B

Front

Identify the variables in the expression 5p + 4h - 2.

Back

p, h

Tags

CCSS.6.EE.A.2B

Front

What is the result of s^2 ÷ 2 when s = 4?

Back

8

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression 6 + 7b - 3a when a = 2 and b = 8.

Back

56

Tags

CCSS.6.EE.A.2C

Front

What is a coefficient in an algebraic expression?

Back

A coefficient is a number that is multiplied by a variable. For example, in 4x, 4 is the coefficient.

Tags

CCSS.6.EE.A.2B