What is the result of multiplying 81.6 by 0.7?

To find the result of multiplying 81.6 by 0.7, you can perform the multiplication directly. When you multiply these numbers, you are essentially taking 81.6 and finding what 70% of it is, since 0.7 corresponds to 70%.

Carrying out the multiplication:

81.6 × 0.7 = 57.12.

This result can be verified by breaking it down. The multiplication can also be set up as follows:

81.6 × 0.7 can be computed by multiplying 81.6 by 7 first (which gives 571.2) and then dividing that result by 10 (since we are working with one decimal place in 0.7), which indeed brings you back to 57.12.

Thus, the answer of 57.12 accurately reflects the result of the multiplication, confirming the correctness of that choice. Understanding basic decimal multiplication in this manner helps ensure clarity when approaching similar problems.