How to Make Calculator In .bat files

1. Open Notepad
2. Copy This Code

...................................................................
@echo off
title Batch Calculator By "TExt"
color 1f
:top
echo --------------------------------------------------------------
echo Welcome to Calculator By "anything"
echo --------------------------------------------------------------
echo.
set /p sum=
set /a ans=%sum%
echo.
echo = %ans%
echo --------------------------------------------------------------
pause
cls
echo Previous Answer: %ans%
goto top
pause
exit
 .....................................................................


3. Paste 
4. Save As .bat File


Run It