How many outfits does Tommy have?

• He has three different shirts: red, yellow and green.

• He has two different pairs of pants: blue and brown.

• He has a belt that he can wear or not wear.

• How many outfits does Tommy have?

How many outfits does Tommy have?

What's for lunch?

• Katie's Cafe offers three entrees for lunch: soup, salad, or soufle.

• She has three choices for the main course: roast beef, chicken or salmon.

• There are four choices for dessert: chocolate cake, strawberry trifle, ice cream or chocolate sundae.

• How many different choices are there for lunch?

Fundamental Counting Principle

• In some problems, there can be a lot of variations.

• In order to find the number of variations, we can use the Fundamental Counting Principle.

What's for lunch?

• Use the Fundamental Counting Principle to quickly determine how many options there are for lunch.

Alphabet Cards

• I have a stack of 52 alphabet cards

• 26 uppercase cards (A, B C, . . .)

• 26 lowercase cards (a, b, c, . . .)

• What is the probability I select one card and it is an uppercase vowel?

Chipotle

• Chipotle offers a variety of choices for food. How many options are there?

• You can have a burrito, bowl, salad or tacos

• Choices for protein include carne asada, chicken, steak, barbacoa, carnitas, sofritas or veggies

Chipotle

• Choices for rice include white, brown, cauliflower or no rice

• Choices for beans include black, pinto or no beans

• Choices for salsa include fresh tomato, corn, green tomatillo, red tomatillo or no salsa

• You can also have sour cream, fajita veggies, cheese or lettuce (or not!)

Don't forget the guac!

Chipotle

• Choices for rice include white, brown, cauliflower or no rice

• Choices for beans include black, pinto or no beans

• Choices for salsa include fresh tomato, corn, green tomatillo, red tomatillo or no salsa

• You can also have sour cream, fajita veggies, cheese or lettuce (or not!)