Rex Calc

Rex Calc is a basic calculator, including multiplication, subtraction, division, and addition operations. To use Rex Calc, type the two numbers that are going to be involved in the math problem in the boxes labeled “1st number” and “2nd number”. Then click the button for the desired operation, and the answer will be displayed in the box labeled “answer”. To erase the numbers in the boxes, click the button labeled “clear” in the bottom right corner of the screen.