Tools 1282. Press the Erase soft key. TheSelect to erase screenappears in the display.Note: Your Home and 2nd clocks aredisabled in the Select to erase screento prevent them being erased.3. Select the World Clock youwant to erase. A check markappears in the selected WorldClock’s checkbox.4. Press the Erase soft key. Youare returned to the World Time screen in which the erasedWorld Clock no longer appears.CalculatorYou can perform calculations, including addition, subtraction,multiplication, division, and percentages using your phone.1. From the Tools menu, select Calculator. The Calculatorscreen appears in the display.2. Enter the first number in yourcalculation using thecalculator-style touchkeypad. (Numbers can be upto 15 digits long, and caninclude a decimal pointfollowed by up to 5 moredigits.)3. Select the desired operation.[You can nest calculationsusing parentheses “( )”.] Todelete your last entry, press .4. Use the keypad to enter the second number for yourcalculation.5. Press to perform the calculation and view the result.