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.

1,500,000,000

Step-by-step explanation:

First multipy the first digits, which are the ones that do not contain zero.

then put all of the zeros at the end, so product will be 1,500,000,000 because their are 8 zeros in total

if you check with calculator, you get 1,500,000,000

687.09 dollars       happy now

step-by-step explanation: 6870

1857 times .63 equals 1169.91 subtract that from 1857 you get 687.09