100s Day Computation Challenge

What better way to spend 100s day, than with a math game?

In order to practice 2 digit by 2 digit multiplication, you got 100 problems to solve.  The class was split into 2 teams, red and blue.  Each team had a mix of kids who wanted help with the steps for multiplying two digits by two digits, and those who can do it on their own.  Everyone picked a problem to solve, got it checked, and if they got it right, it was colored with their team color.  If it was wrong, they had to give it to a person on the opposing team. 

Here are the results:

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That's right; it was a tie!

Before we had our tie-breaker, I asked everyone to think about why we did this activity, instead of plenty of others that feature the number 100.

• It let you practice 2x2 digit multiplication.
• It got you ready for the math MCAS.
• It made you practice working as a team.
  

So for the tie-breaker, I wanted to see which team had members who really took the time to teach their teammates who needed help learning how to multiply. 

Everyone was given 1 problem to solve independently.  And the team who gave the most help to each other, and had the most members who could solve that problem correctly was the blue team!  Congratulations!