Adding 9 to 63: Base-10 Blocks Visual Addition Problem

To solve this problem, we need to add the additional blocks to the existing blocks:

• Step 1: Start with the initial number of blocks, which is 63.
• Step 2: Add the additional blocks, which are 9, using the addition operation.
• Step 3: Perform the addition: $63 + 9$.

Now, let's calculate:

Performing the addition, we have:

This calculation gives us the total number of blocks. Therefore, the solution to the problem is that there are 72 blocks in total.