Daas Yochid-
There are a few ways to do it, but the easiest is just to press the <Alt> key and while holding it down type the “1” on the numeric keypad of your keyboard. The character will appear after you release the <Alt> key.
The numeric keys above your keyboard won’t work for this.
<Alt> 1 = ?
<Alt> 2 = ?
<Alt> 3 = ?
…and so on.