Checkbox1.checked (event) blabla
if checkbox1.checked = true then
   Temp += 1
else
   Temp -= 1
end if
 
checkbox2.checked (event) blbla
if checkbox2.checked = true then
   Temp += 10
else
   Temp -= 10
end if
 
checkbox3.checked (event) blbla
if checkbox3.checked = true then
   Temp += 100
else
   Temp -= 100
end if