For Part A, the parts shown in the model are represented by the quantities on each side of the mat, which are 6 and 3. Therefore, the equation that represents the parts is:
6 + 3
For Part B, the equation that matches the model with 6 blocks on one side and 3 blocks on the other side is:
6 + 3 = 9
So to summarize:
- Part A: 6 + 3
- Part B: 6 + 3 = 9