@echo off
echo Type the first number.
set /p num1=
cls
echo Type the second number.
set /p num2=
cls
echo 1 - add
echo 2 - subtract
echo 3 - multiply
echo 4 - divide
set /p input=
cls
if %input%==1 goto :add
if %input%==2 goto :subtract
if %input%==3 goto :multiply
if %input%==4 goto :divide
if %input%==5 goto :exit
:add
set /a sum=%num1%+%num2%
echo %sum%
pause
cls
goto :exit

:subtract
set /a sum=%num1%-%num2%
echo %sum%
pause
cls
goto :exit

:multiply
set /a sum=%num1%*%num2%
echo %sum%
pause
cls
goto :exit

:divide
set /a sum=%num1%/%num2%
echo %sum%
pause
cls
goto :exit

:exit
exit