Unit 2
20 × 30
Step 1: 2 × 10 × 3 × 10 = Factoring
Step 2: (2 × 3) × (10 × 10) = Commutative/Associative Properties
Step 3: 6 × 100 = Simplify
Step 4: 600 = Product
Step 1: 2 × 10 × 3 × 10 = Factoring
Step 2: (2 × 3) × (10 × 10) = Commutative/Associative Properties
Step 3: 6 × 100 = Simplify
Step 4: 600 = Product


 Underwater Adventure  Level A/B = Solve the multiplication puzzles to survive underwater!

 Fill in the Blank: Can you solve each multiplication puzzle following the U.S. Traditional Algorithm?

Fast Fact Multiplication Practice
 Pumpkin Multiples: Can you catch all the pumpkins that are multiples of your number?
 Multiple VennDiagram: Sort the multiples of two numbers into a VennDiagram.  Shooting Factors: Shoot the marble at its factor pair before time runs out.  Using a Multiplication Table: Use this interactive multiplication table to practice your math facts.  Who Wants to be a Millionaire (Factor Edition): If you know factors, you might just earn $1,000,000!  Broken Calculator: Eric has smashed his calculator, but some of it still works. Can you help him?  Is It Prime?  Enter any number you can think of and see if it is prime!  Multiple Ninja: Slice the multiples and save the day!  Meteor Madness: Shoot the meteors before they destroy your ship!  Math Magic: Are you a Multiplication Math Magician?  Math Match: Can you match the factors to their product?  Multiplication MashUp: A website with A LOT of fun multiplication games!  Flash Card Practice: Use these flashcards to practice your multiplication facts.  Study Smart: A great resource for printable flashcards, quizzes, and links to math fact apps.  Math Mayhem: Try to beat other players by knowing your math facts faster!  Flappy Bird: Help Flappy Bird fly through the tubes by choosing the right gap. Be warned. It's hard!  Tony's Tires: Use your knowledge of fast facts to win the race!  Printable Practice: A printable parentheses worksheet. Use the answer key to check your work.  Make 24: Use parentheses along with the help of +, , x, and ÷ to make the number 24!  Bracket Basics: Can you figure out what numbers go in the boxes?  High Stakes Heist: Can you use order of operations to crack the safe and grab the money?  Royal Rescue: Will you be the hero of the kingdome?  Open Sentence Practice: How many open sentences can you solve? 
MultiDigit Multiplication Practice
 Splash Time: Use your multiplication knowledge to sail across the splashing sea.
 Who Wants To Be A Millionaire: Can you get to the million dollar question?  Fill in the Blank: Can you solve each multiplication puzzle following the U.S. Traditional Algorithm?  Multiply It: Use the partial product to solve these 1 x 3 digit multiplication puzzles!  Underwater Adventure = Solve the multiplication puzzles to survive underwater!  Jeopardy: Can you use the partialproducts method to rack up the points? 
Multiplication Estimation
Josh the giraffe loves to be able to quickly guess how many people are in a room, how many cars are in the street, how many boxes are on the shelf, or even how many seagulls are on the beach. Often, when he is trying to solve a puzzle, he doesn't need an exact answer, just an answer that is good enough. Estimation can save Josh time, money, and helps him make fewer mistakes. Let's help Josh practice some estimation with multiplication.
Giraffes can run at a steady 11 mph pace for very long distances. About how many miles can they run in 3 hours?
The average male giraffes is 18 ft tall. If you stacked 30 giraffes on top of one another, about how tall would they be?

 Beat the Clock: How fast can you estimate? (Choose Multiply Tens)
 Ice Ice Maybe: Estimate to help the penguins get to the tropical island. (Choose Macaroni Penguins)  Golf: Estimate your way to a hole in one!  Connect 4: Play against a friend and be the first to get 4 in a row. (Choose multiplication)  PacMan: The word's most famous piechart is here to help you estimate! 