With the Num Lock key off we have:

1 To the end of the current line
2 One line down
3 One screen down
4 One character to the left
6 One character to the right
7 To the beginning of the current line
8 One line up
9 One screen up

Ctrl/Command-1 To the end of the current sentence
Ctrl/Command-2 One paragraph down
Ctrl/Command-4 One word to the left
Ctrl/Command-6 One word to the right Ctrl/Command-7 To the beginning of the current sentence
Ctrl/Command-8 One paragraph up