Fundamental Counting Principle (Birthday Party Themed) Worksheets

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Fundamental counting principle is a method or rule that allows you to find the size of the sample space or  total number of outcomes for a given situation, event or experiment.


There are ways on how to count the number of outcomes when two or more events occur. Let us consider the example below.

Flavors of Ice Cream Toppings
Chocolate Sprinkles
Mango Nuts

This multiplication method works every time there are several categories and one of each category will be chosen. Using the example above, we have 2 categories (flavors & toppings) and there are 2 flavors and 3 toppings available. Therefore, we can have 

2 x 3 = 6 different ways

Fundamental Counting Principle (Birthday Party Themed) Worksheets

This is a fantastic bundle which includes everything you need to know about Fundamental Counting Principle across 21 in-depth pages.

Each ready to use worksheet collection includes 10 activities and an answer guide. Not teaching common core standards? Don’t worry! All our worksheets are completely editable so can be tailored for your curriculum and target audience.

Resource Examples

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Worksheets Activities Included

Ages 11-12 (Basic)

  • Happy Birthday!
  • Outfit of the Day!
  • Best Café Ever
  • It’s Pizza Time
  • Giveaway Goodies

Ages 12-13 (Advanced)

  • Let’s Play!
  • Feasting Time
  • Let’s Play Again
  • Birthday Wishes
  • Rest and Reflect