First of all, if you are working with an external keyboard, there are high chances that there is a NumLock key. It is mostly located on the right side. You can click on it to toggle Numpad. If you don't have a separate num lock key, these are the most common shortcuts for toggling Numpad in keyboard: Fn + F11 (Acer, Toshiba, Samsung) Shift + Num Lock Fn + Num Lock (Sony, Gateway) Fn + F11 + Scroll lock Fn + F8 (HP) Ctrl + F11 Fn + Shift + Num Lock Fn + F4 (Dell) Fn + Nmlk (Lenovo, ASUS)