Write a rule that tell how to use mental math to find the product 30,000 x 50,000

here is an example

Step-by-step explanation:

Step 1. Think of the basic fact. Multiply. 6  2  12

Step 2- Count the number of zeros in the factors.

                 60 has 1 zero and

                      20 has 1 zero.

Step 3- Write that number of zeros to the right of The answer is 1,200.

the basic-fact product.

B

Step-by-step explanation:

maximum distance minus the minimum distance then divide everything by 2

:)