How can the product of 6and 7 you find the product of 60and 7?

Easy. The product of 6 and 7 is 42. 

The only difference between finding the product of 6 and 7 and finding the product of 60 and 7 is that now the 6 (from 6*7) has a zero added to it. So all you do is take the answer 42 and add a zero to the end of it.

     How can the product of 6 and 7 help you find the product of 60 and 7 
The product of 6 and 7 helps you find the product of 60 and 7 by you need to multiply 6 and 7 first and then finally, you will need to multiply the 0.
                                      
  6 times 7 equal to 42. 60 times 7 equals to 420 . You also could get the answer   by by putting the 0 and putting out the zero.