Press a for addition. Then press a to add to previous number. Press s for subtraction. Then press s to subtract from previous number. Press m for multiplication. Then press m to multiply previous number. Press d for division. Then press d to divide previous number. "c" clears ALL numbers, including previous number.
V.1- Adding, Subtracting, Multiplying and Dividing added. 9/9/17 V.1.1-Previous number interaction added. 9/9/17 V.1.2-Clear function added. 9/9/17
