Lesson 10 Center Day 2
Let’s play games to practice adding and subtracting.
Warm-up Notice and Wonder: Compare the Representations
What do you notice? What do you wonder?
A.
B.
Activity 1 Introduce Target Numbers: Subtract Two-digit Numbers
We are going to learn a new way to play Target Numbers. You and your partner will start with 100 and race to see who can reach a number less than 10 first.
Activity 2 Centers: Choice Time
Choose a center.
Target Numbers
![Center. Target Numbers.](../../../../../downloads/dbe40ddc--TargetNumbers.png)
Capture Squares
![Center. Capture Squares.](../../../../../downloads/645fe7b3--CaptureSquares.png)
Five in a Row
![Center activity. Five in a row.](../../../../../downloads/f291116a--1.5.B-Centers.5_in_a_row-(1).png)