How do you do these problems without a calculator?

It's on an employment test on an application for Subway. I don't remember how to do math.



89 X 69 45 - 49 23 divided by 567How do you do these problems without a calculator?
first multiply and divide

so 89 x 6945 = 618105

and 4923 / 567 = 8.68

then subtract the two

5920 - 8.68 = 618096.32

if you want to put it all in a calculator at once you need you can and it will workHow do you do these problems without a calculator?
think u might have to find a common term between all the numbers.



btw isit (89 x 6945) - (4923/567) or ( 89 x 6945 - 4923 ) / 567 ?