 some real resources with the cell phone as well um there was a time when you know i'm dating myself but you know you have to learn your multiplication tables you have to learn how to do that in your head because you're not going to walk around with calculator you're not going to have a calculator with you anywhere right and we know you know we all walk around with the computer in our in our back pocket or with us in our cell phone um and there are some apps that can be um