! ! ! ! It’s News to Me!! ! ! ! ! ! Solutions1. 8700 (the number of copies needed to be printed) divided by 100 (the number of newspapers per roll) = 87. 87 x 75 (the cost per newspaper)= 6525. 6525 divided by 8700 (the number of copies needed to be printed)= 0.752. You can also do this using addition and subtraction but it takes a lot longer.! ! ! ! Operations Used! We had to use multiplication, and dividing.