Place Value Composition: Building 812 from Hundreds (8), Tens (1), and Ones (2)

To determine the number based on place values:

• Step 1: Calculate hundreds. There are $8$ hundreds, so $8 \times 100 = 800$.
• Step 2: Calculate tens. There is $1$ ten, so $1 \times 10 = 10$.
• Step 3: Calculate ones. There are $2$ ones, so $2 \times 1 = 2$.

Now sum the results of these calculations:

• Total = hundreds + tens + ones $= 800 + 10 + 2 = 812$.

Thus, the number formed by the given place values is $812$.