Overview of translating expressions - Online Tutor - Free Math Videos

The video tutorial provides an overview of algebraic expressions, explaining that they consist of numbers and variables combined through addition, subtraction, multiplication, or division. It defines terms as individual numbers or variables, or their products and quotients. Examples and non-examples of terms are discussed, highlighting that expressions like '3 + X' are not terms but algebraic expressions. The tutorial also introduces powers and exponents, explaining how a base is multiplied by itself according to the exponent. Examples such as '3 squared' and '2 to the third' are used to illustrate these concepts.

What is an algebraic expression composed of?

• Only variables

• Only addition and subtraction

• Numbers and variables combined through operations

• Only numbers

Which of the following is NOT considered a term?

• 7X

• 7 divided by X

• 3 + X

• Z over kW

What is the base in the expression 3 squared?

• 6

• 2

• 3

• 9

How is the expression 2 to the power of 3 evaluated?

• 2 + 2 + 2

• 2 * 2 * 2

• 2 * 3

• 3 * 3

What does the exponent in a power expression indicate?

• The number of times the base is added to itself

• The number of times the base is multiplied by itself

• The number of times the base is divided by itself

• The number of times the base is subtracted from itself