How To Use: 1. Press the Operation 2. Type the number and Press Enter on the keyboard. You can type up to 8 numbers in addition and subtraction, the rest is only 2 or 1. 3. Press Enter ON THE SCREEN. 4. Calculator will say the answer for 3 seconds. It will show the answer in the orange box and the numbers in the list. If is is ADVANCED OPERATION eg. Cos 1. Press Advanced Operation Button. 2. Press Letter on the left of your operation. 3. Type Number. 4. It will show you the answer.
This Calulator shows 4 normal operations, 12 advanced operations, and one button. PI button will show you an approximate value of PI: 3.141592653589
