Algebraic Expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

Tags

CCSS.6.EE.A.2B

Front

Define a variable in the context of algebraic expressions.

Back

A variable is a symbol, often a letter, that represents an unknown value in 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 specific numbers.

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression 2(a - 5) + 2 when a = 15.

Back

22

Tags

CCSS.6.EE.A.2C

Front

Evaluate the expression 7y - 3y for y = 2.

Back

8

Tags

CCSS.6.EE.A.2C

Front

What is the difference of squares formula?

Back

The difference of squares formula states that 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 the result of evaluating 5y + 2 when y = 3?

Back

17

Tags

CCSS.6.EE.A.2C

Front

What is the coefficient in the expression 7y - 3y?

Back

The coefficient is the numerical factor in front of the variable, which is 7 for the first term and -3 for the second term.

Tags

CCSS.6.EE.A.2B

Front

How do you combine like terms in an algebraic expression?

Back

To combine like terms, add or subtract the coefficients of terms that have the same variable raised to the same power.

Tags

CCSS.7.EE.A.1