How many do you see? How do you see them?

Find the value of each difference. Show your thinking using objects, drawings, numbers, or words.

1. Choose a player card. Mix up the other cards. Put them facedown.

   Player name: ________________________________

2. Represent your starting number. Use base-ten blocks.

   Starting number: ____________________________

3. Take turns picking cards. Read your card to the group.
4. Listen for your player’s name. Use blocks to show the change.
5. Write an equation.

6. Write an equation to show the new number.

   Equation 1: ________________________________

   Equation 2: ________________________________

   My player now has ____________ tens and ____________ ones.

   Ending number: _____________________________

   Share this number with your group.

7. Write an equation to show the sum of the ending numbers in your group.