Simple Calculator is a calculator similar to common hand calculators! It has support for big numbers (up to 20 digits) and also has memory!!
It can add, subtract, multiply, divide, calculate percentage, square root, power of two, and power of n. It also has memory functions and a button (ANS) that returns the last answer you got so you can continue your calculations.
Size : 149k
Current Version : 4.1.0
Requires Android : 2.1 and up