Addition Using Base-Ten Blocks (Example)

The video tutorial demonstrates how to add 225 and 317 using base 10 blocks. It begins by representing each number with units, rods, and flats corresponding to their place values. The tutorial then shows how to combine these representations, regrouping units into rods and summing the components to arrive at the final result of 542.

What happens to the 10 units when we regroup them?

What is the final sum of 225 and 317, and how is it represented in base 10 blocks?