![](/img/p/75/875.jpg)
Motorola i580
calculator
Since you posed this question two months ago, you've probably figured it out by now, but I'll answer anyway for those reading after
Press the Menu button.
Scroll with the arrow keys to Java Apps, press "OK".
A screen showing all the Java Apps that are loaded in you phone will appear. The Calculator Suite app icon looks like a cube with plus, minus and multiply symbols shown. Scroll to select it and press "OK".
A start up screen appears, then a menu of four sub-apps.
Give it a try!